The I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context.
CVE-2012-0879
MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence
Score 5.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EPSS
- 37.2%
- KEV
- Not listed
Published
May 17, 2012
Last Modified
April 29, 2026
Advisory Details (6)
Auto-updated May 29, 2026Patch available.
generic Patch Available
[SECURITY] [DSA 2469-1] linux-2.6 security update
http://www.debian.org/security/2012/dsa-2469generic
'[security bulletin] HPSBGN02970 rev.1 - HP Rapid Deployment Pack (RDP) or HP Insight Control Server ' - MARC
http://marc.info/?l=bugtraq&m=139447903326211&w=2Vendor Advisories for CVE-2012-0879(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(5)
What is CVE-2012-0879?
CVE-2012-0879 is a medium vulnerability published on May 17, 2012. The I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context.
When was CVE-2012-0879 disclosed?
CVE-2012-0879 was first published in the National Vulnerability Database on May 17, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-0879 actively exploited?
CVE-2012-0879 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2012-0879?
CVE-2012-0879 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2012-0879?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-0879, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2012-0879
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