CVE-2012-5374

Description

The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (extended runtime of kernel code) by creating many different files whose names are associated with the same CRC32C hash value.

References

http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9c52057c698fb96f8f07e7a4bcf4801a092bda89

http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html

http://openwall.com/lists/oss-security/2012/12/13/20

http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2

http://www.ubuntu.com/usn/USN-1944-1

http://www.ubuntu.com/usn/USN-1945-1

http://www.ubuntu.com/usn/USN-1946-1

http://www.ubuntu.com/usn/USN-1947-1

http://www.ubuntu.com/usn/USN-2017-1

https://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89

Details

Risk Information

CVSS v2