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critical9.8

CVE-2016-1908

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 decisio…

Impact

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 products

VendorProductAffected versions
OpenbsdOpenssh
before 7.2
DebianDebian Linux
Version 8.0
OracleLinux
Versions 6, 7
RedhatEnterprise Linux Desktop
Versions 6.0, 7.0
RedhatEnterprise Linux Eus
Versions 7.2, 7.3, 7.4, 7.5, 7.6, 7.7
RedhatEnterprise Linux Server
Versions 6.0, 7.0
RedhatEnterprise Linux Server Aus
Versions 7.2, 7.3, 7.4, 7.6, 7.7
RedhatEnterprise Linux Server Tus
Versions 7.2, 7.3, 7.6, 7.7
RedhatEnterprise Linux Workstation
Versions 6.0, 7.0

Weakness classification

CWE-287

References