
CVE catalog
CVE-2020-27749
grub2 affected and fixed versions
A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.57% · Oct 27, 2026
Projects and upstream resources
Reported versions and fixes
Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Debiantrixie | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debiantrixie | grub2 | 2.12-9+deb13u2 | Fixed | [CVE-2020-27749] |
| Debiansid | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debiansid | grub2 | 2.14-4 | Fixed | [CVE-2020-27749] |
| Debianforky | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debianforky | grub2 | 2.14-4 | Fixed | [CVE-2020-27749] |
| Debianbookworm-security | grub2 | 2.06-13+deb12u1 | Fixed | [CVE-2020-27749] |
| Debianbookworm | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debianbookworm | grub2 | 2.06-13+deb12u2 | Fixed | [CVE-2020-27749] |
Showing 9 fix observations. All 104 observations, including unknown and conflicting reports, are available below.
Provider details and historical evidence
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Alpine3.17 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.18 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.19 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.20 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.21 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.22 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.23 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Alpine3.24 | grub | 2.06-r0 | UnknownSource applicability is not established | [ALPINE-CVE-2020-27749] |
| Debianbookworm | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debianbookworm | grub2 | 2.06-13+deb12u2 | Fixed | [CVE-2020-27749] |
| Debianbookworm-security | grub2 | 2.06-13+deb12u1 | Fixed | [CVE-2020-27749] |
| Debianforky | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debianforky | grub2 | 2.14-4 | Fixed | [CVE-2020-27749] |
| Debiansid | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debiansid | grub2 | 2.14-4 | Fixed | [CVE-2020-27749] |
| Debiantrixie | grub2 | 2.04-16 | FixedDistribution-reported fixed boundary | [CVE-2020-27749] |
| Debiantrixie | grub2 | 2.12-9+deb13u2 | Fixed | [CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.167~18.04.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.167~18.04.3 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.167~18.04.5 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.85 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.86 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.87 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.89 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.91 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.92 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.10 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.11 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.13 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.14 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.15 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.16 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.18 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.19 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.2 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.20 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.21 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.22 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.24 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.3 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.4 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.5 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.7 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-signed | 1.93.8 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-unsigned | 2.04-1ubuntu44 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-unsigned | 2.04-1ubuntu44.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu18.04 | grub2-unsigned | 2.04-1ubuntu44.1.2 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.128 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.129 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.130 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.131 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.133 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.134 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.135 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.136 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.137 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.138 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.139 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.140 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.141 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.10 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.11 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.3 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.4 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.5 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.6 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.8 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.142.9 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.167 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-signed | 1.167.2 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-unsigned | 2.04-1ubuntu44 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntu20.04 | grub2-unsigned | 2.04-1ubuntu44.2 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.22 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.23 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.24 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.25 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.26 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.27 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.30 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.31 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.32 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.33 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.1 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.13 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.14 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.16 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.17 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.18 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.2 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.20 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.22 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.24 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.3 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.4 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.5 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.6 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.7 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.8 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
| Ubuntupro | grub2-signed | 1.34.9 | UnknownSource applicability is not established | [UBUNTU-CVE-2020-27749] |
Original provider fields
{
"package_releases": [
{
"name": "grub2",
"status": "fixed",
"release": "sid",
"version": "2.14-4"
},
{
"name": "grub2",
"status": "fixed",
"release": "forky",
"version": "2.14-4"
},
{
"name": "grub2",
"status": "fixed",
"release": "trixie",
"version": "2.12-9+deb13u2"
},
{
"name": "grub2",
"status": "fixed",
"release": "bookworm",
"version": "2.06-13+deb12u2"
},
{
"name": "grub2",
"status": "fixed",
"release": "bookworm-security",
"version": "2.06-13+deb12u1"
}
],
"fixed_versions": [
{
"bug": null,
"name": "grub2",
"type": "source",
"origin": null,
"release": "sid",
"urgency": "not yet assigned",
"fixed_version": "2.04-16"
},
{
"bug": null,
"name": "grub2",
"type": "source",
"origin": null,
"release": "forky",
"urgency": "not yet assigned",
"fixed_version": "2.04-16"
},
{
"bug": null,
"name": "grub2",
"type": "source",
"origin": null,
"release": "trixie",
"urgency": "not yet assigned",
"fixed_version": "2.04-16"
},
{
"bug": null,
"name": "grub2",
"type": "source",
"origin": null,
"release": "bookworm",
"urgency": "not yet assigned",
"fixed_version": "2.04-16"
}
],
"distribution_packages": [
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.17",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.18",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.19",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.20",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.21",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.22",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.23",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub",
"distro": "alpine",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.06-r0"
}
]
}
],
"release": "3.24",
"versions": [],
"ecosystem": "apk",
"provider_url": "https://osv.dev/vulnerability/ALPINE-CVE-2020-27749",
"fixed_version": "2.06-r0",
"provider_source": "pypi",
"provider_record_id": "ALPINE-CVE-2020-27749",
"provider_updated_at": "2026-10-26T11:17:55.162376318Z",
"applicability_unknown": true
},
{
"name": "grub2-signed",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"release": "pro",
"versions": [
"1.22",
"1.23",
"1.24",
"1.25",
"1.26",
"1.27",
"1.30",
"1.31",
"1.32",
"1.33",
"1.34",
"1.34.1",
"1.34.2",
"1.34.3",
"1.34.4",
"1.34.5",
"1.34.6",
"1.34.7",
"1.34.8",
"1.34.9",
"1.34.13",
"1.34.14",
"1.34.16",
"1.34.17",
"1.34.18",
"1.34.20",
"1.34.22",
"1.34.24"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27749",
"fixed_version": "",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27749",
"provider_updated_at": "2026-02-04T03:59:22.900069Z",
"applicability_unknown": true
},
{
"name": "grub2-signed",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.167~18.04.5"
}
]
}
],
"release": "18.04",
"versions": [
"1.85",
"1.86",
"1.87",
"1.89",
"1.91",
"1.92",
"1.93",
"1.93.1",
"1.93.2",
"1.93.3",
"1.93.4",
"1.93.5",
"1.93.7",
"1.93.8",
"1.93.10",
"1.93.11",
"1.93.13",
"1.93.14",
"1.93.15",
"1.93.16",
"1.93.18",
"1.93.19",
"1.93.20",
"1.93.21",
"1.93.22",
"1.93.24",
"1.167~18.04.1",
"1.167~18.04.3"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27749",
"fixed_version": "1.167~18.04.5",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27749",
"provider_updated_at": "2026-02-04T03:59:22.900069Z",
"applicability_unknown": true
},
{
"name": "grub2-unsigned",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.04-1ubuntu44.1.2"
}
]
}
],
"release": "18.04",
"versions": [
"2.04-1ubuntu44",
"2.04-1ubuntu44.1"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27749",
"fixed_version": "2.04-1ubuntu44.1.2",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27749",
"provider_updated_at": "2026-02-04T03:59:22.900069Z",
"applicability_unknown": true
},
{
"name": "grub2-signed",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.167.2"
}
]
}
],
"release": "20.04",
"versions": [
"1.128",
"1.129",
"1.130",
"1.131",
"1.133",
"1.134",
"1.135",
"1.136",
"1.137",
"1.138",
"1.139",
"1.140",
"1.141",
"1.142",
"1.142.1",
"1.142.3",
"1.142.4",
"1.142.5",
"1.142.6",
"1.142.8",
"1.142.9",
"1.142.10",
"1.142.11",
"1.167"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27749",
"fixed_version": "1.167.2",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27749",
"provider_updated_at": "2026-02-04T03:59:22.900069Z",
"applicability_unknown": true
},
{
"name": "grub2-unsigned",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.04-1ubuntu44.2"
}
]
}
],
"release": "20.04",
"versions": [
"2.04-1ubuntu44"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27749",
"fixed_version": "2.04-1ubuntu44.2",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27749",
"provider_updated_at": "2026-02-04T03:59:22.900069Z",
"applicability_unknown": true
}
]
}OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [grub2]Unknown
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub2-common]Unknown
Source package: [grub2]
Details (6)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-common]Unknown
Source package: [grub2]
Details (6)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-coreboot]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-coreboot-bin]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-coreboot-dbg]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi]Unknown
Source package: [grub2]
Details (6)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-amd64]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-amd64-bin]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-amd64-dbg]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-amd64-signed-template]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-arm64]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-arm64-bin]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-arm64-dbg]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-arm64-signed-template]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· arm64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-ia32]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-ia32-bin]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-efi-ia32-dbg]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-emu]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
- [grub-emu-dbg]Unknown
Source package: [grub2]
Details (3)
2.06-13+deb12u2· amd64 · bookwormFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.12-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
2.06-13+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.04-16dsa · grub2 · debian · bookworm; dsa · grub2 · debian · 12
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_0696.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2020-27749]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-27749]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-27749]
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-336-06.json]
- [https://security-tracker.debian.org/tracker/CVE-2020-27749]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-27749.json]
[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]