CVE catalog
CVE-2023-5215
libnbd affected and fixed versions
A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbd_get_size() function correctly.
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.81% · 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.
Version impact has not been established. The original provider fields are retained below.
Provider details and historical evidence
Original provider fields
{
"package_releases": [
{
"name": "libnbd",
"status": "fixed",
"release": "sid",
"version": "1.24.4-1"
},
{
"name": "libnbd",
"status": "fixed",
"release": "forky",
"version": "1.24.4-1"
},
{
"name": "libnbd",
"status": "fixed",
"release": "trixie",
"version": "1.22.2-1"
},
{
"name": "libnbd",
"status": "vulnerable",
"release": "bookworm",
"version": "1.14.2-1"
}
],
"fixed_versions": [
{
"bug": null,
"name": "libnbd",
"type": "source",
"origin": null,
"release": "sid",
"urgency": "not yet assigned",
"fixed_version": "1.16.5-1"
},
{
"bug": null,
"name": "libnbd",
"type": "source",
"origin": null,
"release": "forky",
"urgency": "not yet assigned",
"fixed_version": "1.16.5-1"
},
{
"bug": null,
"name": "libnbd",
"type": "source",
"origin": null,
"release": "trixie",
"urgency": "not yet assigned",
"fixed_version": "1.16.5-1"
},
{
"bug": null,
"name": "libnbd",
"type": "source",
"origin": null,
"release": "bookworm",
"urgency": "not yet assigned",
"fixed_version": ""
}
],
"distribution_packages": [
{
"name": "libnbd",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1-150300.8.15.1"
}
]
}
],
"release": "leap 15.4",
"versions": [],
"ecosystem": "rpm",
"fixed_version": "1.18.1-150300.8.15.1",
"provider_record_id": "SUSE-SU-2023:4222-1"
},
{
"name": "libnbd",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1-150300.8.15.1"
}
]
}
],
"release": "leap 15.5",
"versions": [],
"ecosystem": "rpm",
"fixed_version": "1.18.1-150300.8.15.1",
"provider_record_id": "SUSE-SU-2023:4222-1"
},
{
"name": "libnbd",
"distro": "opensuse",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.0-1.1"
}
]
}
],
"release": "tumbleweed",
"versions": [],
"ecosystem": "rpm",
"fixed_version": "1.18.0-1.1",
"provider_record_id": "OPENSUSE-SU-2024:13278-1"
}
]
}Publisher notes
[bookworm] libnbd: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libnbd0]Unknown
Source package: [libnbd]
Details (2)
1.14.2-1· amd64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
1.14.2-1· arm64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
- [libnbd-bin]Unknown
Source package: [libnbd]
Details (2)
1.14.2-1· amd64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
1.14.2-1· arm64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
- [libnbd-dev]Unknown
Source package: [libnbd]
Details (2)
1.14.2-1· amd64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
1.14.2-1· arm64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
- [libnbd-ocaml]Unknown
Source package: [libnbd]
Details (2)
1.14.2-1· amd64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
1.14.2-1· arm64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
- [libnbd-ocaml-dev]Unknown
Source package: [libnbd]
Details (2)
1.14.2-1· amd64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
1.14.2-1· arm64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
- [python3-libnbd]Unknown
Source package: [libnbd]
Details (2)
1.14.2-1· amd64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
1.14.2-1· arm64 · bookwormAffected
dsa · libnbd · debian · bookworm; dsa · libnbd · debian · 12
[Debian 13 (Trixie)]
- [libnbd0]Unknown
Source package: [libnbd]
Details (2)
1.22.2-1+b1· amd64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
1.22.2-1+b1· arm64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
- [libnbd-bin]Unknown
Source package: [libnbd]
Details (2)
1.22.2-1+b1· amd64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
1.22.2-1+b1· arm64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
- [libnbd-dev]Unknown
Source package: [libnbd]
Details (2)
1.22.2-1+b1· amd64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
1.22.2-1+b1· arm64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
- [libnbd-ocaml]Unknown
Source package: [libnbd]
Details (2)
1.22.2-1+b1· amd64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
1.22.2-1+b1· arm64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
- [libnbd-ocaml-dev]Unknown
Source package: [libnbd]
Details (2)
1.22.2-1+b1· amd64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
1.22.2-1+b1· arm64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
- [python3-libnbd]Unknown
Source package: [libnbd]
Details (2)
1.22.2-1+b1· amd64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
1.22.2-1+b1· arm64 · trixieFixed · Fixed:
1.16.5-1dsa · libnbd · debian · 13
[openSUSE Tumbleweed]
- [libnbd]Unknown
Source package: [libnbd]
Details (1)
1.25.7-1.1· x86_64 · tumbleweedFixed · Fixed:
1.18.0-1.1dsa · libnbd · opensuse · tumbleweed
- [libnbd0]Unknown
Source package: [libnbd]
Details (1)
1.25.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
1.18.0-1.1Version impact unknown
dsa · libnbd · opensuse · tumbleweed
- [libnbd-bash-completion]Unknown
Source package: [libnbd]
Details (1)
1.25.7-1.1· noarch · tumbleweedUnknown · Fixed:
1.18.0-1.1Version impact unknown
dsa · libnbd · opensuse · tumbleweed
- [libnbd-devel]Unknown
Source package: [libnbd]
Details (1)
1.25.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
1.18.0-1.1Version impact unknown
dsa · libnbd · opensuse · tumbleweed
- [nbdfuse]Unknown
Source package: [libnbd]
Details (1)
1.25.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
1.18.0-1.1Version impact unknown
dsa · libnbd · opensuse · tumbleweed
- [python3-libnbd]Unknown
Source package: [libnbd]
Details (1)
1.25.7-1.1· x86_64 · tumbleweedUnknown · Fixed:
1.18.0-1.1Version impact unknown
dsa · libnbd · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2023_4222-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-5215]
- [https://osv.dev/vulnerability/SUSE-SU-2023:4222-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13278-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-5215]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-5215.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0995.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]