CVE-2015-6564
HIGHOpenSSH < 6.9 - Use-After-Free in PAM Context Handling
Title source: llmDescription
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 (16)
Core 16
Core References
Mailing List mailing-list
http://www.openwall.com/lists/oss-security/2015/08/22/1
Mailing List, Third Party Advisory vendor-advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
Third Party Advisory, VDB Entry vdb-entry
http://www.securityfocus.com/bid/76317
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/201512-04
Vendor Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10136
Vendor Advisory
http://www.openssh.com/txt/release-7.0
Vendor Advisory vendor-advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html
Mailing List mailing-list
http://seclists.org/fulldisclosure/2015/Aug/54
Mailing List vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
Various Sources
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Scores
CVSS v3
7.0
EPSS
0.0060
EPSS Percentile
44.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-264
CWE-416
Status
published
Products (1)
openbsd/openssh
< 6.9
Published
Aug 24, 2015
Tracked Since
Feb 18, 2026