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CVE-2012-5374
The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service…
Medium4.0EPSS 0.48%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Timeline
ID reserved
By mitre
- 4 months later
· 4 months later
Published
- 11 years later
· 11 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.0 | AV:L/AC:H/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.48% · top 58% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.0.
Weakness
Affected products
n/a
- affected n/a
References (11)
- http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c52057c698fb96f8f07e7a4bcf4801a092bda89 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2013:0395 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-1944-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1945-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2017-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1947-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [oss-security] 20121213 CVE-2012-5374 CVE-2012-5375 Btrfs CRC32C denial of service issues (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-1946-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-5374)Record last updated .