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CVE-2015-6564

Date: August 23, 2015

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.

Language: C

Severity Score

7.4

Related Resources (20)

Url: http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html

Url: https://security.gentoo.org/glsa/201512-04

Url: https://kc.mcafee.com/corporate/index?page=content&id=SB10136

Url: https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Url: https://access.redhat.com/security/cve/CVE-2015-6564

Url: http://www.securityfocus.com/bid/76317

Url: https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7

Url: https://security-tracker.debian.org/tracker/CVE-2015-6564

Url: http://rhn.redhat.com/errata/RHSA-2016-0741.html

Url: http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

Url: http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2015-6564

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Url: http://www.openwall.com/lists/oss-security/2015/08/22/1

Url: http://seclists.org/fulldisclosure/2015/Aug/54

Url: http://www.openssh.com/txt/release-7.0

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

Url: https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764

Url: https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html

Url: https://www.mend.io/vulnerability-database/CVE-2015-6564

Severity Score

7.4

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

CVSS v3.1

Base Score:	7.4
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	6.9
Access Vector (AV):	LOCAL
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

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CVE-2015-6564

Date: August 23, 2015

Language: C

Severity Score

Related Resources (20)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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