libssh: CVE-2023-6918

Debian Bug report logs - #1059059
libssh: CVE-2023-6918

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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-2023-6918

Date: Tue, 19 Dec 2023 22:29:44 +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-2023-6918[0]:
| A flaw was found in the libssh implements abstract layer for message
| digest (MD) operations implemented by different supported crypto
| backends. The return values from these were not properly checked,
| which could cause low-memory situations failures, NULL dereferences,
| crashes, or usage of the uninitialized memory as an input for the
| KDF. In this case, non-matching keys will result in
| decryption/integrity failures, terminating the connection.


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-2023-6918
    https://www.cve.org/CVERecord?id=CVE-2023-6918

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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