Descriptionxkeyboard-config before 2.5 in X.Org before 7.6 enables certain XKB debugging functions by default, which allows physically proximate attackers to bypass an X screen lock via keyboard combinations that break the input grab.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, web search, more)
NVD severitymedium (attack range: local)
Debian Bugs656410
Debian/oldoldstablenot vulnerable.
Debian/oldstablenot vulnerable.
Debian/stablenot vulnerable.
Debian/testingnot vulnerable.
Debian/unstablenot vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xorg-server (PTS)squeeze, squeeze (security)2:1.7.7-18fixed
squeeze (lts)2:1.7.7-18+deb6u3fixed
wheezy (security), wheezy2:1.12.4-6+deb7u6fixed
stretch, sid2:1.17.3-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xorg-serversourcelenny(not affected)
xorg-serversourcesqueeze(not affected)


[squeeze] - xorg-server <not-affected> (introduced in 1.11)
[lenny] - xorg-server <not-affected> (introduced in 1.11)
actually unfixed in experimental, not marked because of version numbering

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