Red Hat: CVE-2023-25567: out-of-bounds read when decoding target information (Multiple Advisories)

Red Hat: CVE-2023-25567: out-of-bounds read when decoding target information (Multiple Advisories)

Severity

8

CVSS

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

Published

02/14/2023

Created

05/17/2023

Added

05/17/2023

Modified

01/28/2025

Description

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.

Solution(s)

• redhat-upgrade-gssntlmssp
• redhat-upgrade-gssntlmssp-debuginfo
• redhat-upgrade-gssntlmssp-debugsource

References

• CVE-2023-25567
• RHSA-2023:3097