CVE-2016-1908
Critical · 9.8CVSS
9.8
EPSS
13.7%
Published
Apr 11, 2017
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | openssh | 0 | 1:7.2p1-1 |
| Debian:12 | openssh | 0 | 1:7.2p1-1 |
| Debian:13 | openssh | 0 | 1:7.2p1-1 |
| Debian:14 | openssh | 0 | 1:7.2p1-1 |
| Debian:8 | openssh | 0 | 1:6.7p1-5+deb8u6 |
| Red Hat:enterprise_linux:6::client | openssh | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::client | openssh-askpass | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::client | openssh-clients | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::client | openssh-debuginfo | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::client | openssh-ldap | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::client | openssh-server | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::client | pam_ssh_agent_auth | 0 | 0:0.9.3-117.el6 |
| Red Hat:enterprise_linux:6::computenode | openssh | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::computenode | openssh-askpass | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::computenode | openssh-clients | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::computenode | openssh-debuginfo | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::computenode | openssh-ldap | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::computenode | openssh-server | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::computenode | pam_ssh_agent_auth | 0 | 0:0.9.3-117.el6 |
| Red Hat:enterprise_linux:6::server | openssh | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::server | openssh-askpass | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::server | openssh-clients | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::server | openssh-debuginfo | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::server | openssh-ldap | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::server | openssh-server | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::server | pam_ssh_agent_auth | 0 | 0:0.9.3-117.el6 |
| Red Hat:enterprise_linux:6::workstation | openssh | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::workstation | openssh-askpass | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::workstation | openssh-clients | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::workstation | openssh-debuginfo | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::workstation | openssh-ldap | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::workstation | openssh-server | 0 | 0:5.3p1-117.el6 |
| Red Hat:enterprise_linux:6::workstation | pam_ssh_agent_auth | 0 | 0:0.9.3-117.el6 |
| Red Hat:enterprise_linux:7::client | openssh | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-askpass | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-clients | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-debuginfo | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-keycat | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-ldap | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-server | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | openssh-server-sysvinit | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::client | pam_ssh_agent_auth | 0 | 0:0.9.3-9.25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-askpass | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-clients | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-debuginfo | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-keycat | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-ldap | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-server | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | openssh-server-sysvinit | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::computenode | pam_ssh_agent_auth | 0 | 0:0.9.3-9.25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-askpass | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-clients | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-debuginfo | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-keycat | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-ldap | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-server | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | openssh-server-sysvinit | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::server | pam_ssh_agent_auth | 0 | 0:0.9.3-9.25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-askpass | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-clients | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-debuginfo | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-keycat | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-ldap | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-server | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | openssh-server-sysvinit | 0 | 0:6.6.1p1-25.el7_2 |
| Red Hat:enterprise_linux:7::workstation | pam_ssh_agent_auth | 0 | 0:0.9.3-9.25.el7_2 |
| SUSE:Linux Enterprise Desktop 12 | openssh | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Desktop 12 | openssh-askpass-gnome | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Desktop 12 SP1 | openssh | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Desktop 12 SP1 | openssh-askpass-gnome | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Point of Sale 11 SP3 | openssh | 0 | 6.2p2-0.33.2 |
| SUSE:Linux Enterprise Point of Sale 11 SP3 | openssh-askpass-gnome | 0 | 6.2p2-0.33.5 |
| SUSE:Linux Enterprise Server 11 SP3-LTSS | openssh | 0 | 6.2p2-0.33.2 |
| SUSE:Linux Enterprise Server 11 SP3-LTSS | openssh-askpass-gnome | 0 | 6.2p2-0.33.5 |
| SUSE:Linux Enterprise Server 11 SP3-TERADATA | openssh | 0 | 6.2p2-0.33.2 |
| SUSE:Linux Enterprise Server 11 SP3-TERADATA | openssh-askpass-gnome | 0 | 6.2p2-0.33.5 |
| SUSE:Linux Enterprise Server 11 SP4 | openssh | 0 | 6.6p1-21.1 |
| SUSE:Linux Enterprise Server 11 SP4 | openssh-askpass-gnome | 0 | 6.6p1-21.3 |
| SUSE:Linux Enterprise Server 11-SECURITY | openssh-openssl1 | 0 | 6.6p1-15.1 |
| SUSE:Linux Enterprise Server 12 | openssh | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server 12 | openssh-askpass-gnome | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server 12 SP1 | openssh | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server 12 SP1 | openssh-askpass-gnome | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | openssh | 0 | 6.6p1-21.1 |
| SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | openssh-askpass-gnome | 0 | 6.6p1-21.3 |
| SUSE:Linux Enterprise Server for SAP Applications 12 | openssh | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 | openssh-askpass-gnome | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | openssh | 0 | 6.6p1-42.1 |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | openssh-askpass-gnome | 0 | 6.6p1-42.1 |
| SUSE:Manager 2.1 | openssh | 0 | 6.2p2-0.33.2 |
| SUSE:Manager 2.1 | openssh-askpass-gnome | 0 | 6.2p2-0.33.5 |
| SUSE:Manager Proxy 2.1 | openssh | 0 | 6.2p2-0.33.2 |
| SUSE:Manager Proxy 2.1 | openssh-askpass-gnome | 0 | 6.2p2-0.33.5 |
| SUSE:OpenStack Cloud 5 | openssh | 0 | 6.2p2-0.33.2 |
| SUSE:OpenStack Cloud 5 | openssh-askpass-gnome | 0 | 6.2p2-0.33.5 |
| Ubuntu:14.04:LTS | openssh | 0 | 1:6.6p1-2ubuntu2.7 |
| Ubuntu:16.04:LTS | openssh | 0 | 1:7.2p2-4 |
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