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CVE-2009-2847

CVE-2009-2847

EPSS 0.9%
The 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.
Affected products
n/a · n/a

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References
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=0083fc2c50e6c5127c2802ad323adf8143ab7856http://rhn.redhat.com/errata/RHSA-2009-1243.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=515392http://secunia.com/advisories/36136http://secunia.com/advisories/36501http://secunia.com/advisories/36562http://secunia.com/advisories/36759http://secunia.com/advisories/37105http://secunia.com/advisories/37471https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10637https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8405https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html