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TI-2012-00814 Aliases CVE-2012-0879GHSA-7qf4-c29g-g9jg

The I/O implementation for block devices in the Linux kernel before 2.6.33 does not…

Priority LOW 25CWE-400Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

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.

Why it matters now

EPSS 0.00468 40th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 2.6.33VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*10.04VulnerableCanonical
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*6.0VulnerableDebian
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:*11 sp1VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:*11 sp2VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp1:*:*:*:*:*:*11 sp1VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:*:*:*11 sp1VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:vmware:*:*11 sp1VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:*:*:*11 sp2VulnerableSUSE
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.33 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Debian
  • cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:* Versions 11 sp2 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:vmware:*:* Versions 11 sp1 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:*:*:* Versions 11 sp2 Vulnerable ·SUSE

Remediation

Red Hat 1 advisory

  • RHSA-2012:0481 Released 2012-04-17 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-220.13.1.el6, kernel-debug-2.6.32-220.13.1.el6, kernel-debug-devel-2.6.32-220.13.1.el6 +5
    • Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-220.13.1.el6, python-perf-2.6.32-220.13.1.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-220.13.1.el6, kernel-debug-2.6.32-220.13.1.el6, kernel-debug-devel-2.6.32-220.13.1.el6 +5
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-220.13.1.el6, python-perf-2.6.32-220.13.1.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-220.13.1.el6, kernel-bootwrapper-2.6.32-220.13.1.el6, kernel-debug-2.6.32-220.13.1.el6 +8
    • Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-220.13.1.el6, python-perf-2.6.32-220.13.1.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-220.13.1.el6, kernel-debug-2.6.32-220.13.1.el6, kernel-debug-devel-2.6.32-220.13.1.el6 +5
    • Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-220.13.1.el6, python-perf-2.6.32-220.13.1.el6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2012:0481
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2012:0481
Not affected: 3 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-0879
  2. 2026-10-03 Alias added: GHSA-7qf4-c29g-g9jg

References

Patch 3

Advisory 9

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences