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Fencer Intel
medium 6.9

CVE-2014-0205 json

The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during req…

published 2014-09-28 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-0255

cvss
6.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that triggers a zero count.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 2.6.37

debian advisories DEBIAN-CVE-2014-0205

  • kernel RHEL 6 2.6.32-431.29.2.el6
  • perf RHEL 6 2.6.32-431.29.2.el6
  • python-perf RHEL 6 2.6.32-431.29.2.el6
  • kernel-kdump RHEL 6 2.6.32-431.29.2.el6
  • kernel-firmware RHEL 6 2.6.32-431.29.2.el6
  • kernel-bootwrapper RHEL 6 2.6.32-431.29.2.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-431.29.2.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-431.29.2.el6

red hat advisories RHSA-2014:1365RHSA-2014:1167RHSA-2014:1763

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-0205 updated cvss 6.9

kernel: futex: refcount issue in case of requeue

  • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4) kernel 2.6.32-358.49.1.el6, python-perf 2.6.32-358.49.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.49.1.el6
    fixed: vendor fix RHSA-2014:1365
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6
    fixed: vendor fix RHSA-2014:1167
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.4) perf 2.6.32-358.49.1.el6, kernel 2.6.32-358.49.1.el6, kernel-firmware 2.6.32-358.49.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.49.1.el6
    fixed: vendor fix RHSA-2014:1365
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-kdump 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-bootwrapper 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, +4 more
    fixed: vendor fix RHSA-2014:1167
  • Red Hat Enterprise Linux Server AUS (v. 6.2) perf 2.6.32-220.56.1.el6, kernel 2.6.32-220.56.1.el6, kernel-firmware 2.6.32-220.56.1.el6, kernel-debuginfo-common-x86_64 2.6.32-220.56.1.el6
    fixed: vendor fix RHSA-2014:1763
  • Red Hat Enterprise Linux Server EUS (v. 6.4) perf 2.6.32-358.49.1.el6, kernel 2.6.32-358.49.1.el6, kernel-kdump 2.6.32-358.49.1.el6, kernel-firmware 2.6.32-358.49.1.el6, kernel-bootwrapper 2.6.32-358.49.1.el6, kernel-debuginfo-common-i686 2.6.32-358.49.1.el6, +3 more
    fixed: vendor fix RHSA-2014:1365
  • Red Hat Enterprise Linux Server Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-ppc64 2.6.32-431.29.2.el6, kernel-debuginfo-common-s390x 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6
    fixed: vendor fix RHSA-2014:1167
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.2) kernel 2.6.32-220.56.1.el6, python-perf 2.6.32-220.56.1.el6, kernel-debuginfo-common-x86_64 2.6.32-220.56.1.el6
    fixed: vendor fix RHSA-2014:1763
show 3 more
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.4) kernel 2.6.32-358.49.1.el6, python-perf 2.6.32-358.49.1.el6, kernel-debuginfo-common-i686 2.6.32-358.49.1.el6, kernel-debuginfo-common-ppc64 2.6.32-358.49.1.el6, kernel-debuginfo-common-s390x 2.6.32-358.49.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.49.1.el6
    fixed: vendor fix RHSA-2014:1365
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6
    fixed: vendor fix RHSA-2014:1167
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 7 perf, kernel, bpftool, python-perf, kernel-kdump, kernel-tools, +3 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/7ada876a8703f23befbb20a7465a702ee39b1704 referenced PoC, tagged "exploit" by a source, unverified
  • mirror.linux.org.au http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.37 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.