USN-6371-1

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Source
https://ubuntu.com/security/notices/USN-6371-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6371-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-6371-1
Upstream
Related
Published
2023-09-14T15:03:04.752794Z
Modified
2025-10-13T04:36:36Z
Summary
libssh2 vulnerability
Details

It was discovered that libssh2 incorrectly handled memory access. An attacker could possibly use this issue to cause a crash.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libssh2

Package

Name
libssh2
Purl
pkg:deb/ubuntu/libssh2@1.4.3-2ubuntu0.2+esm3?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.3-2ubuntu0.2+esm3

Affected versions

1.*

1.4.3-1
1.4.3-2
1.4.3-2ubuntu0.1
1.4.3-2ubuntu0.2
1.4.3-2ubuntu0.2+esm1
1.4.3-2ubuntu0.2+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssh2-1",
            "binary_version": "1.4.3-2ubuntu0.2+esm3"
        },
        {
            "binary_name": "libssh2-1-dev",
            "binary_version": "1.4.3-2ubuntu0.2+esm3"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-22218",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:Pro:16.04:LTS / libssh2

Package

Name
libssh2
Purl
pkg:deb/ubuntu/libssh2@1.5.0-2ubuntu0.1+esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.0-2ubuntu0.1+esm2

Affected versions

1.*

1.5.0-2
1.5.0-2ubuntu0.1
1.5.0-2ubuntu0.1+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssh2-1",
            "binary_version": "1.5.0-2ubuntu0.1+esm2"
        },
        {
            "binary_name": "libssh2-1-dev",
            "binary_version": "1.5.0-2ubuntu0.1+esm2"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-22218",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS / libssh2

Package

Name
libssh2
Purl
pkg:deb/ubuntu/libssh2@1.8.0-1ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.0-1ubuntu0.1

Affected versions

1.*

1.8.0-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssh2-1",
            "binary_version": "1.8.0-1ubuntu0.1"
        },
        {
            "binary_name": "libssh2-1-dev",
            "binary_version": "1.8.0-1ubuntu0.1"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-22218",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / libssh2

Package

Name
libssh2
Purl
pkg:deb/ubuntu/libssh2@1.8.0-2.1ubuntu0.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.0-2.1ubuntu0.1

Affected versions

1.*

1.8.0-2.1build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssh2-1",
            "binary_version": "1.8.0-2.1ubuntu0.1"
        },
        {
            "binary_name": "libssh2-1-dev",
            "binary_version": "1.8.0-2.1ubuntu0.1"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-22218",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}