Unchecked Return Value Affecting libssh-config package, versions <0:0.9.6-14.el8


Severity

Recommended
low

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-ALMALINUX8-LIBSSHCONFIG-7166976
  • published30 May 2024
  • disclosed30 Apr 2024

Introduced: 30 Apr 2024

CVE-2023-6918  (opens in a new tab)
CWE-252  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 libssh-config to version 0:0.9.6-14.el8 or higher.
This issue was patched in ALSA-2024:3233.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh-config package and not the libssh-config package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1