CVE-2016-1908

Published: Apr 11, 2017Modified: May 29, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (25)

Products: Openbsd: Openssh · Debian: Debian Linux · Oracle: Linux · +1 more

Show all products

Openbsd: Openssh · Debian: Debian Linux · Oracle: Linux · Redhat: Enterprise Linux Desktop, Enterprise Linux Eus, Enterprise Linux Server, Enterprise Linux Server Aus, Enterprise Linux Server Tus, Enterprise Linux Workstation

1 product

1 product

1 product

6 products

Enterprise Linux Desktop

Enterprise Linux Eus

Enterprise Linux Server

Enterprise Linux Server Aus

Enterprise Linux Server Tus

Enterprise Linux Workstation

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openssh	Before 7.2

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 8.0

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Oracle Linux	Version 6
Oracle Linux	Version 7

Configuration D

21 vulnerable

Vulnerable Software	Affected Versions
Redhat Enterprise Linux Desktop	Version 6.0
Redhat Enterprise Linux Desktop	Version 7.0
Redhat Enterprise Linux Eus	Version 7.2
Redhat Enterprise Linux Eus	Version 7.3
Redhat Enterprise Linux Eus	Version 7.4
Redhat Enterprise Linux Eus	Version 7.5
Redhat Enterprise Linux Eus	Version 7.6
Redhat Enterprise Linux Eus	Version 7.7
Redhat Enterprise Linux Server	Version 6.0
Redhat Enterprise Linux Server	Version 7.0
Redhat Enterprise Linux Server Aus	Version 7.2
Redhat Enterprise Linux Server Aus	Version 7.3
Redhat Enterprise Linux Server Aus	Version 7.4
Redhat Enterprise Linux Server Aus	Version 7.6
Redhat Enterprise Linux Server Aus	Version 7.7
Redhat Enterprise Linux Server Tus	Version 7.2
Redhat Enterprise Linux Server Tus	Version 7.3
Redhat Enterprise Linux Server Tus	Version 7.6
Redhat Enterprise Linux Server Tus	Version 7.7
Redhat Enterprise Linux Workstation	Version 6.0
Redhat Enterprise Linux Workstation	Version 7.0

Related CWEs

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (24)

http://openwall.com/lists/oss-security/2016/01/15/13

Source: secalert@redhat.com

Mailing ListThird Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-0465.html

Source: secalert@redhat.com

Third Party Advisory

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

Source: secalert@redhat.com

Third Party Advisory

http://www.openssh.com/txt/release-7.2

Source: secalert@redhat.com

Release NotesVendor Advisory

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

Source: secalert@redhat.com

Third Party Advisory

http://www.securityfocus.com/bid/84427

Source: secalert@redhat.com

Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id/1034705

Source: secalert@redhat.com

Broken LinkThird Party AdvisoryVDB Entry

https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c

Source: secalert@redhat.com

PatchThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1298741

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

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

Source: secalert@redhat.com

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

Source: secalert@redhat.com

Mailing ListThird Party Advisory

https://security.gentoo.org/glsa/201612-18

Source: secalert@redhat.com

Third Party Advisory

http://openwall.com/lists/oss-security/2016/01/15/13

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://rhn.redhat.com/errata/RHSA-2016-0465.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

http://www.openssh.com/txt/release-7.2

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

http://www.securityfocus.com/bid/84427

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id/1034705

Source: af854a3a-2127-422b-91ae-364da2661108

Broken LinkThird Party AdvisoryVDB Entry

https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1298741

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

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

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://security.gentoo.org/glsa/201612-18

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.