Oracle Linux: CVE-2023-25565: ELSA-2023-3097: gssntlmssp security update (MODERATE) (Multiple Advisories)

Oracle Linux: CVE-2023-25565: ELSA-2023-3097:gssntlmssp security update (MODERATE) (Multiple Advisories)

Severity

8

CVSS

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

Published

02/14/2023

Created

05/29/2023

Added

05/25/2023

Modified

12/05/2024

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. A flaw was found in GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication. 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 issue will likely trigger an assertion failure in `free,` causing a denial of service.

Solution(s)

• oracle-linux-upgrade-gssntlmssp

References

• https://attackerkb.com/topics/cve-2023-25565
• CVE - 2023-25565
• ELSA-2023-3097