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CVE-2023-6004

Publication date 3 January 2024

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

4.8 · Medium

Score breakdown

A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.

Read the notes from the security team

Status

Package Ubuntu Release Status
libssh 23.10 mantic
Fixed 0.10.5-3ubuntu1.2
23.04 lunar
Fixed 0.10.4-2ubuntu0.3
22.04 LTS jammy
Fixed 0.9.6-2ubuntu0.22.04.3
20.04 LTS focal
Fixed 0.9.3-2ubuntu2.5
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored end of standard support

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Notes


mdeslaur

original patches introduce a regression, see upstream bug

Patch details

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

Package Patch details
libssh

Severity score breakdown

Parameter Value
Base score 4.8 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L