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.
CVE-2012-5375
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 54.1%
- KEV
- Not listed
Published
February 18, 2013
Last Modified
April 29, 2026
References (20)
- cve@mitrehttp://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/
- cve@mitrehttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c52057c698fb96f8f07e7a4bcf4801a092bda89
- cve@mitrehttp://openwall.com/lists/oss-security/2012/12/13/20
- cve@mitrehttp://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
- cve@mitrehttp://www.ubuntu.com/usn/USN-1944-1
- cve@mitrehttp://www.ubuntu.com/usn/USN-1945-1
- cve@mitrehttp://www.ubuntu.com/usn/USN-1946-1
- cve@mitrehttp://www.ubuntu.com/usn/USN-1947-1
- cve@mitrehttp://www.ubuntu.com/usn/USN-2017-1
- cve@mitrehttps://github.com/torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89
- af854a3a-2127-422b-91ae-364da2661108http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/
- af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c52057c698fb96f8f07e7a4bcf4801a092bda89
- af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2012/12/13/20
- af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
- af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-1944-1
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-3.2.0-56-virtual (3.2.0-56.86) @ precise | 2026-05-29 | ubuntu |
| ubuntu | linux-image-3.5.0-40-generic (3.5.0-40.62~precise1) @ precise | 2026-05-29 | ubuntu |
| ubuntu | linux-image-3.5.0-232-omap4 (3.5.0-232.48) @ raring | 2026-05-29 | ubuntu |
| ubuntu | linux-image-3.2.0-1440-omap4 (3.2.0-1440.59) @ precise | 2026-05-29 | ubuntu |
| ubuntu | linux-image-3.5.0-40-highbank (3.5.0-40.62) @ quantal | 2026-05-29 | ubuntu |
| ubuntu | linux-image-3.5.0-232-omap4 (3.5.0-232.48) @ quantal | 2026-05-29 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
All Vendor Advisories
(6)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- UbuntuUSN-1944-1LOW
Linux kernel vulnerabilities
- UbuntuUSN-1945-1LOW
Linux kernel (OMAP4) vulnerabilities
- UbuntuUSN-1946-1LOW
Linux kernel (OMAP4) vulnerabilities
- UbuntuUSN-1947-1LOW
Linux kernel (Quantal HWE) vulnerabilities
- UbuntuUSN-2017-1LOW
Linux kernel vulnerabilities
- UbuntuUSN-2018-1LOW
Linux kernel (OMAP4) vulnerabilities
Data Freshness Timeline
(refreshed 6× in last 7d / 36× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-05 09:59 UTCOSV refresh
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 14:53 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
Show 50 moreShow fewer
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 20:44 UTCOSV refresh
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 13:18 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 00:54 UTCEG score recompute
- 2026-05-29 00:54 UTCVendor advisory
- 2026-05-29 00:54 UTCGHSA enrichment
- 2026-05-28 19:36 UTCOSV refresh
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 22:39 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-38132✓ verifiedFirst seen Dec 13, 2012
Linux Kernel 3.3.5 - Btrfs CRC32C feature Infinite Loop Local Denial of Service
Open source ↗
Frequently asked(4)
What is CVE-2012-5375?
When was CVE-2012-5375 disclosed?
Is CVE-2012-5375 actively exploited?
How do I remediate CVE-2012-5375?
Dependency Blast Radius
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