CVE-2015-6564

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Summary

CVECVE-2015-6564
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-08-24 01:59:01 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionUse-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.

Risk And Classification

Primary CVSS: v2.0 6.9 from [email protected]

AV:L/AC:M/Au:N/C:C/I:C/A:C

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openbsd Openssh All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] [DLA 1500-1] openssh security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
McAfee KnowledgeBase - Intel Security - Security Bulletin: Firewall Enterprise update fixes OpenSSH CVE-2015-5600 and CVE-2015-6564 vulnerabilities af854a3a-2127-422b-91ae-364da2661108 kc.mcafee.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
OpenSSH: Multiple vulnerabilities (GLSA 201512-04) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
oss-security - Re: CVE request - OpenSSH 6.9 PAM privilege separation vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
set sshpam_ctxt to NULL after free · openssh/openssh-portable@5e75f51 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
[SECURITY] Fedora 21 Update: openssh-6.6.1p1-16.fc21 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Oracle Solaris Bulletin - January 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
OpenSSH PAM Support Multiple Remote Code Execution Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
www.openssh.com/txt/release-7.0 af854a3a-2127-422b-91ae-364da2661108 www.openssh.com Vendor Advisory
Full Disclosure: BFS-SA-2015-002: OpenSSH PAM Privilege Separation Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 seclists.org
[security-announce] SUSE-SU-2015:1581-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com
Oracle Linux Bulletin - October 2015 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
Oracle Linux Bulletin - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
Broadcom Inc. | Connecting Everything af854a3a-2127-422b-91ae-364da2661108 www.broadcom.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 591280 Siemens SCALANCE X-200RNA Switch Devices Denial of Service (DoS) Multiple Vulnerabilities (ICSA-22-349-21, SSA-412672)
  • 690300 Free Berkeley Software Distribution (FreeBSD) Security Update for openssh (2920c449-4850-11e5-825f-c80aa9043978)
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