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Access of Uninitialized Pointer The advisory has been revoked - it doesn't affect any version of package rhcos  (opens in a new tab)

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1.3% (70th percentile)

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  • Snyk IDSNYK-RHEL8-RHCOS-15650430
  • published15 Mar 2026
  • disclosed12 Mar 2026
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Introduced: 12 Mar 2026

CVE-2026-3497  (opens in a new tab)
CWE-824  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rhcos package and not the rhcos package as distributed by RHEL.

Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.

References