Access Restriction Bypass Affecting openssh package, versions <1:6.7p1-5+deb8u6


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.04% (12th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN8-OPENSSH-368675
  • published24 Aug 2015
  • 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 Debian:8 openssh to version 1:6.7p1-5+deb8u6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Debian. See How to fix? for Debian:8 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 Scores

version 3.1