Out-of-bounds Read Affecting openssh-askpass-debuginfo package, versions <0:9.9p1-9.el9_8.rocky.0.1


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.65% (50th percentile)

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  • Snyk IDSNYK-ROCKY9-OPENSSHASKPASSDEBUGINFO-18476529
  • published31 Jul 2026
  • disclosed23 Jun 2026

Introduced: 23 Jun 2026

CVE-2026-55654  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 openssh-askpass-debuginfo to version 0:9.9p1-9.el9_8.rocky.0.1 or higher.
This issue was patched in RLSA-2026:47756.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh-askpass-debuginfo package and not the openssh-askpass-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1