CVE-2023-51385

Publication date 20 December 2023

Last updated 11 February 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.

Read the notes from the security team

Status

Package Ubuntu Release Status
openssh 24.10 oracular
Fixed 1:9.6p1-3ubuntu1
24.04 LTS noble
Fixed 1:9.6p1-3ubuntu1
23.10 mantic
Fixed 1:9.3p1-1ubuntu3.2
23.04 lunar
Fixed 1:9.0p1-1ubuntu8.7
22.04 LTS jammy
Fixed 1:8.9p1-3ubuntu0.6
20.04 LTS focal
Fixed 1:8.2p1-4ubuntu0.11
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored end of ESM support, was needs-triage
openssh-ssh1 24.10 oracular Ignored
24.04 LTS noble Ignored
23.10 mantic Ignored end of life, was needed
23.04 lunar Ignored end of life, was needs-triage
22.04 LTS jammy Ignored
20.04 LTS focal Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

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Notes

mdeslaur

openssh-ssh1 is only provided for compatibility with old devices that cannot be upgraded to modern protocols. We will not be providing any security support for the openssh-ssh1 package as it is insecure and should be used in trusted environments only.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openssh

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-6565-1
    • OpenSSH vulnerabilities
    • 3 January 2024
    • USN-6560-2
    • OpenSSH vulnerabilities
    • 11 January 2024
    • USN-6560-3
    • OpenSSH vulnerability
    • 16 September 2024

Other references