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Red Hat: CVE-2023-25565: incorrect free when decoding target information (Multiple Advisories)

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Red Hat: CVE-2023-25565: incorrect free when decoding target information (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/14/2023
Created
05/17/2023
Added
05/17/2023
Modified
12/15/2023

Description

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.

Solution(s)

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

References

  • CVE-2023-25565
  • RHSA-2023:3097

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