Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2008-4307

Publication date 13 January 2009

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Race condition in the do_setlk function in fs/nfs/file.c in the Linux kernel before 2.6.26 allows local users to cause a denial of service (crash) via vectors resulting in an interrupted RPC call that leads to a stray FL_POSIX lock, related to improper handling of a race between fcntl and close in the EINTR case.

From the Ubuntu Security Team

NFS did not correctly handle races between fcntl and interrupts. A local attacker on an NFS mount could consume unlimited kernel memory, leading to a denial of service.

Status

Package Ubuntu Release Status
linux 8.10 intrepid
Not affected
8.04 LTS hardy
Fixed 2.6.24-23.52
7.10 gutsy Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
6.06 LTS dapper
Fixed 2.6.15-54.76
linux-source-2.6.22 8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy
Fixed 2.6.22-16.62
6.06 LTS dapper Not in release

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-752-1
    • Linux kernel vulnerabilities
    • 7 April 2009
    • USN-751-1
    • Linux kernel vulnerabilities
    • 6 April 2009

Other references