CVE-2009-4141

Use-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.

• CWE-399

• http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.htmlExploit
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6
• http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
• http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.cExploit
• http://secunia.com/advisories/38199Vendor Advisory
• http://secunia.com/advisories/39033
• http://support.avaya.com/css/P8/documents/100073666
• http://twitter.com/taviso/statuses/7744108017Patch
• http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2Patch
• http://www.redhat.com/support/errata/RHSA-2010-0161.html
• http://www.securityfocus.com/bid/37806
• https://bugzilla.redhat.com/show_bug.cgi?id=547906
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201
• https://rhn.redhat.com/errata/RHSA-2010-0046.html
• https://rhn.redhat.com/errata/RHSA-2010-0095.html
• http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.htmlExploit
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6
• http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
• http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.cExploit
• http://secunia.com/advisories/38199Vendor Advisory
• http://secunia.com/advisories/39033
• http://support.avaya.com/css/P8/documents/100073666
• http://twitter.com/taviso/statuses/7744108017Patch
• http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2Patch
• http://www.redhat.com/support/errata/RHSA-2010-0161.html
• http://www.securityfocus.com/bid/37806
• https://bugzilla.redhat.com/show_bug.cgi?id=547906
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201
• https://rhn.redhat.com/errata/RHSA-2010-0046.html
• https://rhn.redhat.com/errata/RHSA-2010-0095.html

Published

Jan 19, 2010

Last Modified

Jun 16, 2026

Status

Modified

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