Release of Invalid Pointer or Reference Affecting gssntlmssp package, versions <0:1.2.0-1.el8_8


medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.09% (37th percentile)
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NVD
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-ORACLE8-GSSNTLMSSP-5600343
  • published 25 May 2023
  • disclosed 14 Feb 2023

How to fix?

Upgrade Oracle:8 gssntlmssp to version 0:1.2.0-1.el8_8 or higher.
This issue was patched in ELSA-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 Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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.