CVE-2009-2847

NameCVE-2009-2847
DescriptionThe do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDSA-1872-1, DSA-1928-1
NVD severitymedium (attack range: local)
Debian/oldstablenot vulnerable.
Debian/stablenot known to be vulnerable.
Debian/testingnot known to be vulnerable.
Debian/unstablenot known to be vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux-2.6 (PTS)squeeze (security), squeeze2.6.32-48squeeze6fixed
squeeze (lts)2.6.32-48squeeze11fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
fai-kernelssourceetch1.17+etch.24etch4mediumDSA-1872-1
linux-2.6source(unstable)2.6.30-6low
linux-2.6sourceetch2.6.18.dfsg.1-24etch4mediumDSA-1872-1
linux-2.6sourcelenny2.6.26-19low
linux-2.6.24source(unstable)(unfixed)medium
linux-2.6.24sourceetch2.6.24-6~etchnhalf.9etch1mediumDSA-1928-1
user-mode-linuxsourceetch2.6.18-1um-2etch.24etch4mediumDSA-1872-1

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