CVE-2009-4141

NameCVE-2009-4141
DescriptionUse-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.
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 severityhigh

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linux-2.6sourceetch(not affected)
linux-2.6sourcelenny(not affected)
linux-2.6source(unstable)2.6.32-6
linux-2.6.24source(unstable)(not affected)

Notes

[lenny] - linux-2.6 <not-affected> (vulnerable code introduced in 2.6.28)
[etch] - linux-2.6 <not-affected> (vulnerable code introduced in 2.6.28)
- linux-2.6.24 <not-affected> (vulnerable code introduced in 2.6.28)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=53281b6d3

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