Out-of-bounds Read Affecting gssntlmssp package, versions <0:1.2.0-1.el8_8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-RHEL8-GSSNTLMSSP-5543706
  • published21 Feb 2023
  • disclosed14 Feb 2023

Introduced: 14 Feb 2023

CVE-2023-25567  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade RHEL:8 gssntlmssp to version 0:1.2.0-1.el8_8 or higher.
This issue was patched in RHSA-2023:3097.

NVD Description

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

GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the av_pair is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main gss_accept_sec_context entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.

CVSS Scores

version 3.1