CVE catalog

CVE-2020-22218

libssh2 affected and fixed versions

[CVE catalog]

An issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
1.16% · 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 / releasePackageVersionStatusSource
Debiantrixie-securitylibssh21.11.1-1+deb13u1Fixed[CVE-2020-22218]
Debiantrixielibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debiantrixielibssh21.11.1-1+deb13u2Fixed[CVE-2020-22218]
Debiansidlibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debiansidlibssh21.11.1-6Fixed[CVE-2020-22218]
Debianforkylibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debianforkylibssh21.11.1-6Fixed[CVE-2020-22218]
Debianbookworm-securitylibssh21.10.0-3+deb12u1Fixed[CVE-2020-22218]
Debianbookwormlibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debianbookwormlibssh21.10.0-3Fixed[CVE-2020-22218]

Showing 10 fix observations. All 44 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
UnknownRelease not reportedlibssh21.10.0-2UnknownSource applicability is not establishedProvider not reported
Debianbookwormlibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debianbookwormlibssh21.10.0-3Fixed[CVE-2020-22218]
Debianbookworm-securitylibssh21.10.0-3+deb12u1Fixed[CVE-2020-22218]
Debianforkylibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debianforkylibssh21.11.1-6Fixed[CVE-2020-22218]
Debiansidlibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debiansidlibssh21.11.1-6Fixed[CVE-2020-22218]
Debiantrixielibssh21.10.0-2FixedDistribution-reported fixed boundary[CVE-2020-22218]
Debiantrixielibssh21.11.1-1+deb13u2Fixed[CVE-2020-22218]
Debiantrixie-securitylibssh21.11.1-1+deb13u1Fixed[CVE-2020-22218]
Opensuseleap 15.4libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Opensuseleap 15.5libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suseenterprise storage 7libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suseenterprise storage 7.1libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise high performance computing 15 sp1-ltsslibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise high performance computing 15 sp2-ltsslibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise high performance computing 15 sp3-esposlibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise high performance computing 15 sp3-ltsslibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise micro 5.1libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise micro 5.2libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise micro 5.3libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise micro 5.4libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise module for basesystem 15 sp4libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise module for basesystem 15 sp5libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise server 12 sp5libssh2_org1.4.3-26.5.1UnknownSource applicability is not established[SUSE-SU-2023:3738-1]
Suselinux enterprise server 15 sp1-ltsslibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise server 15 sp2-ltsslibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise server 15 sp3-ltsslibssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise server for sap applications 12 sp5libssh2_org1.4.3-26.5.1UnknownSource applicability is not established[SUSE-SU-2023:3738-1]
Suselinux enterprise server for sap applications 15 sp1libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise server for sap applications 15 sp2libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise server for sap applications 15 sp3libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Suselinux enterprise software development kit 12 sp5libssh2_org1.4.3-26.5.1UnknownSource applicability is not established[SUSE-SU-2023:3738-1]
Susemanager proxy 4.2libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Susemanager server 4.2libssh2_org1.9.0-150000.4.16.1UnknownSource applicability is not established[SUSE-SU-2023:3555-1]
Ubuntu18.04libssh21.8.0-1UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntu18.04libssh21.8.0-1ubuntu0.1UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntu20.04libssh21.8.0-2.1build1UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntu20.04libssh21.8.0-2.1ubuntu0.1UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntuprolibssh21.5.0-2UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntuprolibssh21.5.0-2ubuntu0.1UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntuprolibssh21.5.0-2ubuntu0.1+esm1UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Ubuntuprolibssh21.5.0-2ubuntu0.1+esm2UnknownSource applicability is not established[USN-6371-1][UBUNTU-CVE-2020-22218]
Original provider fields
{
  "package_releases": [
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      "version": "1.11.1-6"
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    },
    {
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    },
    {
      "bug": null,
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      "release": "bookworm",
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    }
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    },
    {
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      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-22218",
      "fixed_version": "",
      "provider_source": "nvd",
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      "provider_updated_at": "2026-10-14T10:17:32.317"
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        }
      ],
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      "versions": [],
      "ecosystem": "rpm",
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      "fixed_version": "1.9.0-150000.4.16.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "suse",
      "ranges": [
        {
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            },
            {
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            }
          ]
        }
      ],
      "release": "linux enterprise server 15 sp1-ltss",
      "versions": [],
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      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
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      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ]
        }
      ],
      "release": "linux enterprise server 15 sp2-ltss",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
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      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "suse",
      "ranges": [
        {
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            },
            {
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            }
          ]
        }
      ],
      "release": "linux enterprise server 15 sp3-ltss",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
      "fixed_version": "1.9.0-150000.4.16.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
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            {
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            },
            {
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            }
          ]
        }
      ],
      "release": "linux enterprise server for sap applications 15 sp1",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
      "fixed_version": "1.9.0-150000.4.16.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "suse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
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            },
            {
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            }
          ]
        }
      ],
      "release": "linux enterprise server for sap applications 15 sp2",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
      "fixed_version": "1.9.0-150000.4.16.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "suse",
      "ranges": [
        {
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            },
            {
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            }
          ]
        }
      ],
      "release": "linux enterprise server for sap applications 15 sp3",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
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      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
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        {
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            },
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            }
          ]
        }
      ],
      "release": "manager proxy 4.2",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
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      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
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      ],
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      "applicability_unknown": true
    },
    {
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      ],
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      "versions": [],
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      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
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      ],
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    },
    {
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      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
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      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
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      "ranges": [
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            {
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            }
          ]
        }
      ],
      "release": "leap 15.4",
      "versions": [],
      "ecosystem": "rpm",
      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
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      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    },
    {
      "name": "libssh2_org",
      "distro": "opensuse",
      "ranges": [
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            }
          ]
        }
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      "release": "leap 15.5",
      "versions": [],
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      "provider_url": "https://osv.dev/vulnerability/SUSE-SU-2023:3555-1",
      "fixed_version": "1.9.0-150000.4.16.1",
      "provider_source": "pypi",
      "provider_record_id": "SUSE-SU-2023:3555-1",
      "provider_updated_at": "2026-02-04T03:02:28.106260Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [libssh2-1]Unknown

    Source package: [libssh2]

    Details (2)

    • 1.10.0-3+b1 · amd64 · bookworm

      Fixed · Fixed: 1.10.0-2

      dsa · libssh2 · debian · bookworm

    • 1.10.0-3+b1 · arm64 · bookworm

      Fixed · Fixed: 1.10.0-2

      dsa · libssh2 · debian · bookworm

  • [libssh2-1-dev]Unknown

    Source package: [libssh2]

    Details (2)

    • 1.10.0-3+b1 · amd64 · bookworm

      Fixed · Fixed: 1.10.0-2

      dsa · libssh2 · debian · bookworm

    • 1.10.0-3+b1 · arm64 · bookworm

      Fixed · Fixed: 1.10.0-2

      dsa · libssh2 · debian · bookworm

Observed:

References

[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]