Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 3.0 |
Related Weaknesses (CWE)
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%3Ba=commit%3Bh=
- 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.bz2Patch
- 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/9c52057c698fb96f8f07e7a4bcf4801a092bda8ExploitPatch
- http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html
- http://openwall.com/lists/oss-security/2012/12/13/20
FAQ
What is CVE-2012-5374?
CVE-2012-5374 is a vulnerability with a CVSS score of 4.0 (MEDIUM). 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 who...
How severe is CVE-2012-5374?
CVE-2012-5374 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-5374?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.