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CVE-2012-5374

17
FAUCET Score

CVE-2012-5374 describes a denial-of-service vulnerability affecting the Btrfs implementation in the Linux kernel prior to version 3.8-rc1. A local attacker can exploit this by creating numerous files with names that generate the same CRC32C hash, leading to an extended runtime of kernel code. This vulnerability has a CVSS score of 4.0, indicating a low attack complexity but a complete availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:L/AC:H/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
38.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0048 is in the 74th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-5374

(btrfs): DoS (extended runtime of kernel code) via CRC32C hash collisions

Dec 13, 2012

References

crypto.junod.info / 2012/12/13/hash-dos-and-btrfs
git.kernel.org
lists.opensuse.org / opensuse-security-announce/2013-03/msg00004.html
openwall.com / lists/oss-security/2012/12/13/20
github.com / torvalds/linux/commit/9c52057c698fb96f8f07e7a4bcf4801a092bda89
ExploitPatch
kernel.org / pub/linux/kernel/v3.x/testing/patch-3.8-rc1.bz2
Patch
ubuntu.com / usn/USN-1944-1
ubuntu.com / usn/USN-1945-1
ubuntu.com / usn/USN-1946-1
ubuntu.com / usn/USN-1947-1
ubuntu.com / usn/USN-2017-1