Access Restriction Bypass Affecting openssh-clients package, versions <0:5.3p1-117.el6


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-ORACLE6-OPENSSHCLIENTS-2508212
  • published10 Apr 2022
  • disclosed24 Aug 2015

Introduced: 24 Aug 2015

CVE-2015-6564  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Oracle:6 openssh-clients to version 0:5.3p1-117.el6 or higher.
This issue was patched in ELSA-2016-0741.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh-clients package and not the openssh-clients package as distributed by Oracle. See How to fix? for Oracle:6 relevant fixed versions and status.

Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.

CVSS Base Scores

version 3.1