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CVE-2012-0879

19
FAUCET Score

CVE-2012-0879 describes a denial-of-service vulnerability in the Linux kernel's I/O implementation for block devices, affecting versions before 2.6.33, including distributions like Canonical, Debian, and SUSE. Local users can exploit this by initiating multiple processes that share an I/O context, leading to I/O instability. With a CVSS score of 5.5 (Medium), this vulnerability has a local attack vector and low attack complexity, primarily impacting system availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.33CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
10.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 91st percentile among its peer group of 15,937 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-220.13.1.el6
View patch

Vendor Advisories (1)

redhatCVE-2012-0879Moderate

kernel: block: CLONE_IO io_context refcounting issues

Dec 4, 2009

References

ftp.osuosl.org / pub/linux/kernel/v2.6/ChangeLog-2.6.33
Broken Link
git.kernel.org
git.kernel.org
lists.opensuse.org / opensuse-security-announce/2012-05/msg00013.html
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2012-0481.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2012-0531.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
secunia.com / advisories/48545
Not Applicable
secunia.com / advisories/48842
Not Applicable
github.com / torvalds/linux/commit/61cc74fbb87af6aa551a06a370590c9bc07e29d9
PatchThird Party Advisory
github.com / torvalds/linux/commit/b69f2292063d2caf37ca9aec7d63ded203701bf3
PatchThird Party Advisory
debian.org / security/2012/dsa-2469
Third Party Advisory
openwall.com / lists/oss-security/2012/02/23/5
Mailing ListThird Party Advisory
securitytracker.com / id
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1408-1
Third Party Advisory
ubuntu.com / usn/USN-1410-1
Third Party Advisory
ubuntu.com / usn/USN-1411-1
Third Party Advisory