USN-6738-1

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Source
https://ubuntu.com/security/notices/USN-6738-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6738-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-6738-1
Upstream
Related
Published
2024-04-22T09:47:43.692995Z
Modified
2025-10-13T04:36:55Z
Summary
lxd vulnerability
Details

Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk discovered that LXD incorrectly handled the handshake phase and the use of sequence numbers in SSH Binary Packet Protocol (BPP). If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to bypass integrity checks.

References

Affected packages

Ubuntu:Pro:16.04:LTS / lxd

Package

Name
lxd
Purl
pkg:deb/ubuntu/lxd@2.0.11-0ubuntu1~16.04.4+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.11-0ubuntu1~16.04.4+esm1

Affected versions

0.*

0.20-0ubuntu4
0.21-0ubuntu3
0.21-0ubuntu5
0.22-0ubuntu1
0.22-0ubuntu2
0.23-0ubuntu1
0.23-0ubuntu2
0.23-0ubuntu3
0.24-0ubuntu2
0.24-0ubuntu3
0.24-0ubuntu4
0.25-0ubuntu1
0.26-0ubuntu2
0.26-0ubuntu3
0.27-0ubuntu1
0.27-0ubuntu2

2.*

2.0.0~beta1-0ubuntu3
2.0.0~beta1-0ubuntu4
2.0.0~beta2-0ubuntu1
2.0.0~beta2-0ubuntu2
2.0.0~beta3-0ubuntu1
2.0.0~beta3-0ubuntu2
2.0.0~beta3-0ubuntu3
2.0.0~beta3-0ubuntu4
2.0.0~beta4-0ubuntu1
2.0.0~beta4-0ubuntu2
2.0.0~beta4-0ubuntu3
2.0.0~beta4-0ubuntu4
2.0.0~beta4-0ubuntu5
2.0.0~beta4-0ubuntu6
2.0.0~beta4-0ubuntu7
2.0.0~rc1-0ubuntu1
2.0.0~rc1-0ubuntu2
2.0.0~rc1-0ubuntu3
2.0.0~rc2-0ubuntu2
2.0.0~rc2-0ubuntu3
2.0.0~rc3-0ubuntu1
2.0.0~rc3-0ubuntu2
2.0.0~rc3-0ubuntu3
2.0.0~rc3-0ubuntu4
2.0.0~rc4-0ubuntu1
2.0.0~rc5-0ubuntu1
2.0.0~rc6-0ubuntu1
2.0.0~rc6-0ubuntu2
2.0.0~rc7-0ubuntu1
2.0.0~rc7-0ubuntu2
2.0.0~rc8-0ubuntu1
2.0.0~rc8-0ubuntu2
2.0.0~rc8-0ubuntu3
2.0.0~rc8-0ubuntu5
2.0.0~rc8-0ubuntu6
2.0.0~rc8-0ubuntu7
2.0.0~rc9-0ubuntu2
2.0.0~rc9-0ubuntu3
2.0.0~rc9-0ubuntu4
2.0.0~rc9-0ubuntu5
2.0.0-0ubuntu1
2.0.0-0ubuntu2
2.0.0-0ubuntu3
2.0.0-0ubuntu4
2.0.1-0ubuntu1~16.04.1
2.0.2-0ubuntu1~16.04.1
2.0.3-0ubuntu1~ubuntu16.04.2
2.0.4-0ubuntu1~ubuntu16.04.1
2.0.5-0ubuntu1~ubuntu16.04.1
2.0.8-0ubuntu1~ubuntu16.04.1
2.0.8-0ubuntu1~ubuntu16.04.2
2.0.9-0ubuntu1~16.04.1
2.0.9-0ubuntu1~16.04.2
2.0.10-0ubuntu1~16.04.1
2.0.10-0ubuntu1~16.04.2
2.0.11-0ubuntu1~16.04.2
2.0.11-0ubuntu1~16.04.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.0.11-0ubuntu1~16.04.4+esm1",
            "binary_name": "golang-github-lxc-lxd-dev"
        },
        {
            "binary_version": "2.0.11-0ubuntu1~16.04.4+esm1",
            "binary_name": "lxc2"
        },
        {
            "binary_version": "2.0.11-0ubuntu1~16.04.4+esm1",
            "binary_name": "lxd"
        },
        {
            "binary_version": "2.0.11-0ubuntu1~16.04.4+esm1",
            "binary_name": "lxd-client"
        },
        {
            "binary_version": "2.0.11-0ubuntu1~16.04.4+esm1",
            "binary_name": "lxd-tools"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2023-48795"
            }
        ],
        "ecosystem": "Ubuntu:Pro:16.04:LTS"
    }
}

Ubuntu:Pro:18.04:LTS / lxd

Package

Name
lxd
Purl
pkg:deb/ubuntu/lxd@3.0.3-0ubuntu1~18.04.2+esm1?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.3-0ubuntu1~18.04.2+esm1

Affected versions

2.*

2.18-0ubuntu6
2.19-0ubuntu1
2.20-0ubuntu3
2.20-0ubuntu4
2.21-0ubuntu1
2.21-0ubuntu2
2.21-0ubuntu3
2.21-0ubuntu4

3.*

3.0.0~beta2-0ubuntu3
3.0.0~beta3-0ubuntu3
3.0.0~beta5-0ubuntu2
3.0.0~beta7-0ubuntu1
3.0.0-0ubuntu1
3.0.0-0ubuntu2
3.0.0-0ubuntu3
3.0.0-0ubuntu4
3.0.1-0ubuntu1~18.04.1
3.0.2-0ubuntu1~18.04.1
3.0.3-0ubuntu1~18.04.1
3.0.3-0ubuntu1~18.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.3-0ubuntu1~18.04.2+esm1",
            "binary_name": "lxd"
        },
        {
            "binary_version": "3.0.3-0ubuntu1~18.04.2+esm1",
            "binary_name": "lxd-client"
        },
        {
            "binary_version": "3.0.3-0ubuntu1~18.04.2+esm1",
            "binary_name": "lxd-tools"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2023-48795"
            }
        ],
        "ecosystem": "Ubuntu:Pro:18.04:LTS"
    }
}