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CVE-2016-1908 Details

Description

The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: CISA-ADPCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://openwall.com/lists/oss-security/2016/01/15/13	CVE	Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0465.html	CVE	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html	CVE	Third Party Advisory
https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c	CVE	PatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1298741	CVE	Issue TrackingPatchThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf	CVE
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html	CVE	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201612-18	CVE	Third Party Advisory
http://www.openssh.com/txt/release-7.2	CVE	Release NotesVendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	CVE	Third Party Advisory
http://www.securityfocus.com/bid/84427	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034705	CVE	Broken LinkThird Party AdvisoryVDB Entry
http://openwall.com/lists/oss-security/2016/01/15/13	[email protected]	Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0465.html	[email protected]	Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html	[email protected]	Third Party Advisory
https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c	[email protected]	PatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1298741	[email protected]	Issue TrackingPatchThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf	[email protected]
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html	[email protected]	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201612-18	[email protected]	Third Party Advisory
http://www.openssh.com/txt/release-7.2	[email protected]	Release NotesVendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	[email protected]	Third Party Advisory
http://www.securityfocus.com/bid/84427	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034705	[email protected]	Broken LinkThird Party AdvisoryVDB Entry

see all 24 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	[email protected]
CWE-287	Improper Authentication	CISA-ADP

Affected Products

Product	Versions
openbsd openssh	< 7.2
CPE cpe:2.3:a:openbsd:openssh:::::::: Remediation No remediation found in references.
debian debian linux	8.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* Remediation No remediation found in references.
oracle linux	6 - 7 -
CPE cpe:2.3:o:oracle:linux:6:-:::::: cpe:2.3:o:oracle:linux:7:-:::::: Remediation No remediation found in references.
redhat enterprise linux desktop	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux eus	7.2 7.3 7.4 7.5 7.6
CPE cpe:2.3:o:redhat:enterprise_linux_eus:7.2:::::::* cpe:2.3:o:redhat:enterprise_linux_eus:7.3:::::::* cpe:2.3:o:redhat:enterprise_linux_eus:7.4:::::::* cpe:2.3:o:redhat:enterprise_linux_eus:7.5:::::::* cpe:2.3:o:redhat:enterprise_linux_eus:7.6:::::::* cpe:2.3:o:redhat:enterprise_linux_eus:7.7:::::::* Remediation No remediation found in references.
redhat enterprise linux server	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server aus	7.2 7.3 7.4 7.6 7.7
CPE cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:::::::* cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:::::::* cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:::::::* cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:::::::* cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:::::::* Remediation No remediation found in references.
redhat enterprise linux server tus	7.2 7.3 7.6 7.7
CPE cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:::::::* cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:::::::* cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:::::::* cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::* Remediation No remediation found in references.

Change History

15 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 29, 2026	CVE Modified	CISA-ADP
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Dec 13, 2022	CVE Modified	[email protected]
Aug 18, 2022	Modified Analysis	[email protected]
Sep 11, 2018	CVE Modified	[email protected]
May 18, 2018	CVE Modified	[email protected]
Jan 5, 2018	CVE Modified	[email protected]
Sep 10, 2017	CVE Modified	[email protected]
Jul 1, 2017	CVE Modified	[email protected]
Apr 17, 2017	Initial Analysis	[email protected]
Apr 13, 2017	CVE Modified	[email protected]

CVE-2016-1908 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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