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

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (10th percentile)
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NVD
7.8 high
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Red Hat
4.8 medium

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  • Snyk ID SNYK-DEBIAN8-OPENSSH-368675
  • published 24 Aug 2015
  • disclosed 24 Aug 2015
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Introduced: 24 Aug 2015

CVE-2015-6564 Open this link in a new tab
CWE-264 Open this link 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.

References