CVE-2012-6538

NameCVE-2012-6538
DescriptionThe copy_to_user_auth function in net/xfrm/xfrm_user.c in the Linux kernel before 3.6 uses an incorrect C library function for copying a string, which allows local users to obtain sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.59-1fixed
stretch4.9.144-3fixed
stretch (security)4.9.110-3+deb9u6fixed
buster4.19.16-1fixed
sid4.19.28-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)3.2.32-1low
linux-2.6source(unstable)(unfixed)low
linux-2.6sourcesqueeze(not affected)

Notes

[squeeze] - linux-2.6 <not-affected> (Introduced in 2.6.33)

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