libssh: CVE-2023-6004

Debian Bug report logs - #1059061
libssh: CVE-2023-6004

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: libssh: CVE-2023-6004

Date: Tue, 19 Dec 2023 22:34:33 +0100

Source: libssh
Version: 0.10.5-3
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for libssh.

CVE-2023-6004[0]:
| ProxyCommand/ProxyJump features allow injection of malicious code
| through hostname

The security tracker lists a set of commits referencing this CVE.
There is no information (yet?) apart of the upstrema commits. But from
the Red Hat tracking[1]:

Using the ProxyCommand or the ProxyJump feature enables users to
exploit unchecked hostname syntax on the client, which enables to
inject malicious code into the command of the above-mentioned features
through the hostname parameter.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2023-6004
    https://www.cve.org/CVERecord?id=CVE-2023-6004
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2251110

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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