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CVE-2009-4141

Publication date 19 January 2010

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 9.10 karmic
Fixed 2.6.31-19.56
9.04 jaunty
Fixed 2.6.28-18.59
8.10 intrepid
Not affected
8.04 LTS hardy
Not affected
6.06 LTS dapper Not in release
linux-source-2.6.15 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper
Not affected

Notes

mdeslaur

introduced by http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=233e70f4228e78eb2f80dc6650f65d3ae3dbf17c

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

References

Related Ubuntu Security Notices (USN)

    • USN-894-1
    • Linux kernel vulnerabilities
    • 5 February 2010

Other references