CVE-2015-6564

7.0 HIGH
Published: August 24, 2015 Modified: May 27, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openssh.com/txt/release-7.0
Source: cve@mitre.org
Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://seclists.org/fulldisclosure/2015/Aug/54
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openssh.com/txt/release-7.0
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/08/22/1
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/76317
Source: af854a3a-2127-422b-91ae-364da2661108
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
https://kc.mcafee.com/corporate/index?page=content&id=SB10136
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201512-04
Source: af854a3a-2127-422b-91ae-364da2661108

32 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.0 / 10.0
EPSS (Exploit Probability)
4.1%
89th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

openbsd