CVEvulnerability
CVE-2016-1908
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2017-04-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-287
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 configurations
• openbsd openssh (< 7.2)
• debian debian linux 8.0
• oracle linux 6
• oracle linux 7
• redhat enterprise linux desktop 6.0
• redhat enterprise linux desktop 7.0
• redhat enterprise linux eus 7.2
• redhat enterprise linux eus 7.3
• redhat enterprise linux eus 7.4
• redhat enterprise linux eus 7.5
• redhat enterprise linux eus 7.6
• redhat enterprise linux eus 7.7
• redhat enterprise linux server 6.0
• redhat enterprise linux server 7.0
• redhat enterprise linux server aus 7.2
• redhat enterprise linux server aus 7.3
• redhat enterprise linux server aus 7.4
• redhat enterprise linux server aus 7.6
• redhat enterprise linux server aus 7.7
• redhat enterprise linux server tus 7.2
• redhat enterprise linux server tus 7.3
• redhat enterprise linux server tus 7.6
• redhat enterprise linux server tus 7.7
• redhat enterprise linux workstation 6.0
• redhat enterprise linux workstation 7.0
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- http://openwall.com/lists/oss-security/2016/01/15/13 Mailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0465.html Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0741.html Third Party Advisory
- http://www.openssh.com/txt/release-7.2 Release Notes, Vendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html Third Party Advisory
- http://www.securityfocus.com/bid/84427 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034705 Broken Link, Third Party Advisory, VDB Entry
- https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1298741 Issue Tracking, Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf cert-portal.siemens.com
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201612-18 Third Party Advisory
- http://openwall.com/lists/oss-security/2016/01/15/13 Mailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0465.html Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0741.html Third Party Advisory
- http://www.openssh.com/txt/release-7.2 Release Notes, Vendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html Third Party Advisory
- http://www.securityfocus.com/bid/84427 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034705 Broken Link, Third Party Advisory, VDB Entry
- https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1298741 Issue Tracking, Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf cert-portal.siemens.com
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201612-18 Third Party Advisory