GHSA-5mx2-7g4j-9m39LowCVSS 3.7
A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the...
🔗 CVE IDs covered (1)
📋 Description
A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI (Generic Security Service Application Programming Interface) indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific configurations involving GSSAPI authentication and a Kerberos environment, could exploit this to cause the SSH authentication path to crash or abort. This leads to a denial of service (DoS), impacting the availability of the SSH service.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-55654
- https://access.redhat.com/security/cve/CVE-2026-55654
- https://bugzilla.redhat.com/show_bug.cgi?id=2462493
- https://access.redhat.com/errata/RHSA-2026:36759
- https://access.redhat.com/errata/RHSA-2026:47756
- https://access.redhat.com/errata/RHSA-2026:47757
- https://access.redhat.com/errata/RHSA-2026:54387
- https://github.com/advisories/GHSA-5mx2-7g4j-9m39