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CVE-2010-2226

Publication date 3 September 2010

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The xfs_swapext function in fs/xfs/xfs_dfrag.c in the Linux kernel before 2.6.35 does not properly check the file descriptors passed to the SWAPEXT ioctl, which allows local users to leverage write access and obtain read access by swapping one file into another file.

From the Ubuntu Security Team

Dan Rosenberg discovered that the swapexit xfs ioctl did not correctly check file permissions. A local attacker could exploit this to read from write-only files, leading to a loss of privacy.

Status

Package Ubuntu Release Status
linux 10.10 maverick
Not affected
10.04 LTS lucid
Not affected
9.10 karmic
Fixed 2.6.31-22.67
9.04 jaunty
Fixed 2.6.28-19.66
8.04 LTS hardy
Fixed 2.6.24-28.80
6.06 LTS dapper Not in release
linux-ec2 10.10 maverick Ignored end of life
10.04 LTS lucid
Fixed 2.6.32-309.18
9.10 karmic
Fixed 2.6.31-307.21
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-fsl-imx51 10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.31-608.22
9.10 karmic
Fixed 2.6.31-112.30
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-lts-backport-maverick 10.10 maverick Not in release
10.04 LTS lucid
Fixed 2.6.35-25.44~lucid1
9.10 karmic Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 10.10 maverick Not in release
10.04 LTS lucid Not in release
9.10 karmic Not in release
9.04 jaunty Not in release
8.04 LTS hardy Not in release
6.06 LTS dapper
Not affected

References

Related Ubuntu Security Notices (USN)

    • USN-1074-1
    • Linux kernel vulnerabilities
    • 25 February 2011
    • USN-1083-1
    • Linux kernel vulnerabilities
    • 3 March 2011
    • USN-1000-1
    • Linux kernel vulnerabilities
    • 19 October 2010
    • USN-1074-2
    • Linux kernel vulnerabilities
    • 28 February 2011

Other references