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CVE-2012-5375

Publication date 18 February 2013

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (prevention of file creation) by leveraging the ability to write to a directory important to the victim, and creating a file with a crafted name that is associated with a specific CRC32C hash value.

From the Ubuntu Security Team

A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 14.04 LTS trusty
Not affected
13.10 saucy
Not affected
13.04 raring
Not affected
12.10 quantal
Fixed 3.5.0-40.62
12.04 LTS precise
Fixed 3.2.0-56.86
11.10 oneiric Ignored
10.04 LTS lucid Ignored
8.04 LTS hardy
Not affected
linux-armadaxp 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal
Fixed 3.5.0-1621.29
12.04 LTS precise
Fixed 3.2.0-1627.39
11.10 oneiric Not in release
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-ec2 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
linux-flo 14.04 LTS trusty Ignored
13.10 saucy Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-fsl-imx51 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
linux-goldfish 14.04 LTS trusty Ignored
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-grouper 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-linaro-omap 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
11.10 oneiric Ignored
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-linaro-shared 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
11.10 oneiric Ignored
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-linaro-vexpress 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
11.10 oneiric Ignored
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-lts-backport-maverick 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
linux-lts-backport-oneiric 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
linux-lts-quantal 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise
Fixed 3.5.0-40.62~precise1
11.10 oneiric Not in release
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-lts-raring 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise
Not affected
11.10 oneiric Not in release
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release
linux-lts-saucy 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release
linux-lts-trusty 14.04 LTS trusty Not in release
13.10 saucy Not in release
12.04 LTS precise
Not affected
10.04 LTS lucid Not in release
linux-maguro 14.04 LTS trusty Not in release
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-mako 14.04 LTS trusty Ignored
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-manta 14.04 LTS trusty Ignored
13.10 saucy Ignored
12.10 quantal Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
linux-mvl-dove 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Not in release
12.04 LTS precise Not in release
11.10 oneiric Not in release
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
linux-qcm-msm 14.04 LTS trusty Not in release
13.10 saucy Not in release
13.04 raring Not in release
12.10 quantal Ignored
12.04 LTS precise Ignored
11.10 oneiric Ignored
10.04 LTS lucid Ignored
8.04 LTS hardy Not in release
linux-ti-omap4 14.04 LTS trusty Not in release
13.10 saucy
Not affected
13.04 raring
Fixed 3.5.0-232.48
12.10 quantal
Fixed 3.5.0-232.48
12.04 LTS precise
Fixed 3.2.0-1440.59
11.10 oneiric Ignored
10.04 LTS lucid Not in release
8.04 LTS hardy Not in release

Notes

jdstrand

per kernel team, too intrusive to backport

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-2017-1
    • Linux kernel vulnerabilities
    • 8 November 2013
    • USN-1947-1
    • Linux kernel (Quantal HWE) vulnerabilities
    • 7 September 2013
    • USN-1946-1
    • Linux kernel (OMAP4) vulnerabilities
    • 6 September 2013
    • USN-2018-1
    • Linux kernel (OMAP4) vulnerabilities
    • 8 November 2013
    • USN-1944-1
    • Linux kernel vulnerabilities
    • 6 September 2013
    • USN-1945-1
    • Linux kernel (OMAP4) vulnerabilities
    • 6 September 2013

Other references