Read the docs
TI-2011-00936 Aliases CVE-2011-1083GHSA-vx34-r39m-w274

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly…

Priority LOW 24CWE-400Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Complete
Fix status
Partial Red Hat: 13 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

Why it matters now

EPSS 0.00795 56th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 13 fixed, 1 without a fix

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 · 10

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*up to 2.6.37.2VulnerableLinux
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_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:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:*11 sp2VulnerableSUSE
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 2.6.37.2 Vulnerable ·Linux
  • 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_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
  • cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:* Versions 11 sp2 Vulnerable ·SUSE
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat

Remediation

Red Hat 3 advisories

  • RHSA-2012:1129 Released 2012-07-31 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server EUS (v. 6.2) kernel-2.6.32-220.24.1.el6, kernel-bootwrapper-2.6.32-220.24.1.el6, kernel-debug-2.6.32-220.24.1.el6 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.2) kernel-2.6.32-220.24.1.el6, python-perf-2.6.32-220.24.1.el6
  • RHSA-2012:0862 Released 2012-06-19 · Red Hat rating Moderate
    Red Hat Enterprise Linux 6 kernel security, bug fix and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-279.el6, kernel-debug-2.6.32-279.el6, kernel-debug-devel-2.6.32-279.el6 +4
    • Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-279.el6, python-perf-2.6.32-279.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-279.el6, kernel-debug-2.6.32-279.el6, kernel-debug-devel-2.6.32-279.el6 +4
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-279.el6, python-perf-2.6.32-279.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-279.el6, kernel-bootwrapper-2.6.32-279.el6, kernel-debug-2.6.32-279.el6 +7
    • Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-279.el6, python-perf-2.6.32-279.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-279.el6, kernel-debug-2.6.32-279.el6, kernel-debug-devel-2.6.32-279.el6 +4
    • Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-279.el6, python-perf-2.6.32-279.el6
  • RHSA-2012:0150 Released 2012-02-21 · Red Hat rating Moderate
    Red Hat Enterprise Linux 5.8 kernel update
    • Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-308.el5, kernel-2.6.18-308.el5.ia64, kernel-PAE-2.6.18-308.el5 +14
    • Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-308.el5, kernel-PAE-2.6.18-308.el5, kernel-PAE-devel-2.6.18-308.el5 +6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 4AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2012:0150
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2012:0150
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux Server EUS (v. 6.2)Fixed RHSA-2012:1129
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux Server Optional EUS (v. 6.2)Fixed RHSA-2012:1129
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2012:0862
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2012:0862
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed—

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-1083
  2. 2026-10-03 Alias added: GHSA-vx34-r39m-w274

References

Patch 3

Advisory 3

Other 4

Sources

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