Alma Linux: CVE-2023-25566: Moderate: gssntlmssp security update (ALSA-2023-3097)

Alma Linux: CVE-2023-25566: Moderate: gssntlmssp security update (ALSA-2023-3097)

Severity

8

CVSS

(AV:N/AC:L/Au:N/C:N/I:N/A:C)

Published

02/14/2023

Created

05/23/2023

Added

05/23/2023

Modified

01/28/2025

Description

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.

Solution(s)

• alma-upgrade-gssntlmssp

References

• https://attackerkb.com/topics/cve-2023-25566
• CVE - 2023-25566
• https://errata.almalinux.org/8/ALSA-2023-3097.html