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Vulnerability details: VCID-wwfu-n2x1-aaaj
Vulnerability ID VCID-wwfu-n2x1-aaaj
Aliases CVE-2015-6564
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-264 Permissions, Privileges, and Access Controls
CWE-416 Use After Free
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-6564.html
rhas Moderate https://access.redhat.com/errata/RHSA-2015:2088
rhas Moderate https://access.redhat.com/errata/RHSA-2016:0741
generic_textual Medium https://anongit.mindrot.org/openssh.git/commit/?id=5e75f5198769056089fb06c4d738ab0e5abc66f7
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
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epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
epss 0.00044 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
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epss 0.02272 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
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epss 0.02272 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
epss 0.02272 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
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epss 0.02272 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
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epss 0.02272 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
epss 0.04144 https://api.first.org/data/v1/epss?cve=CVE-2015-6564
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1252852
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6564
generic_textual Medium http://seclists.org/fulldisclosure/2015/Aug/54
generic_textual Medium https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7
cvssv2 6.9 https://nvd.nist.gov/vuln/detail/CVE-2015-6564
generic_textual Medium https://ubuntu.com/security/notices/USN-2710-1
generic_textual Medium http://www.openssh.com/txt/release-7.0
generic_textual Medium http://www.openwall.com/lists/oss-security/2015/08/11/9
generic_textual Medium http://www.openwall.com/lists/oss-security/2015/08/22/1
cvssv3.1 6.5 http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
generic_textual HIGH http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
cvssv3.1 8.8 http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
generic_textual HIGH http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
generic_textual HIGH http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
Reference id Reference type URL
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
http://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-6564.html
http://rhn.redhat.com/errata/RHSA-2016-0741.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-6564.json
https://anongit.mindrot.org/openssh.git/commit/?id=5e75f5198769056089fb06c4d738ab0e5abc66f7
https://api.first.org/data/v1/epss?cve=CVE-2015-6564
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6564
http://seclists.org/fulldisclosure/2015/Aug/54
https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7
https://kc.mcafee.com/corporate/index?page=content&id=SB10136
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
https://security.gentoo.org/glsa/201512-04
https://ubuntu.com/security/notices/USN-2710-1
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764
http://www.openssh.com/txt/release-7.0
http://www.openwall.com/lists/oss-security/2015/08/11/9
http://www.openwall.com/lists/oss-security/2015/08/22/1
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/76317
1252852 https://bugzilla.redhat.com/show_bug.cgi?id=1252852
795711 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795711
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
CVE-2015-6564 https://nvd.nist.gov/vuln/detail/CVE-2015-6564
RHSA-2015:2088 https://access.redhat.com/errata/RHSA-2015:2088
RHSA-2016:0741 https://access.redhat.com/errata/RHSA-2016:0741
No exploits are available.
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6564
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.10982
EPSS Score 0.00044
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.