7.5
CVSSv3

CVE-2023-25566

Published: 14/02/2023 Updated: 07/11/2023
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 0

Vulnerability Summary

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.

Vulnerability Trend

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gss-ntlmssp project gss-ntlmssp

Vendor Advisories

Synopsis Moderate: gssntlmssp security update Type/Severity Security Advisory: Moderate Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for gssntlmssp is now available for Red Hat Enterprise Linux 8Red Hat Product Security has rated this update as havin ...
Debian Bug report logs - #1031369 gss-ntlmssp: CVE-2023-25563 CVE-2023-25564 CVE-2023-25565 CVE-2023-25566 CVE-2023-25567 Package: src:gss-ntlmssp; Maintainer for src:gss-ntlmssp is Timo Aaltonen <tjaalton@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Wed, 15 Feb 2023 21:33:02 UTC Severity: ...
DescriptionThe MITRE CVE dictionary describes this issue as: GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication Prior to version 120, 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 ...