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medium 4.9

CVE-2014-3144 json

The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the…

published 12y ago modified 4mo ago also EUVD-2014-3163

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.14.4-1

debian advisories DEBIAN-CVE-2014-3144

  • linux Ubuntu 14.04 LTS 3.13.0-32.57

ubuntu advisories UBUNTU-CVE-2014-3144

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 6 2.6.32-431.23.3.el6
  • perf RHEL 6 2.6.32-431.23.3.el6
  • python-perf RHEL 6 2.6.32-431.23.3.el6
  • kernel-kdump RHEL 6 2.6.32-431.23.3.el6
  • kernel-firmware RHEL 6 2.6.32-431.23.3.el6
  • kernel-bootwrapper RHEL 6 2.6.32-431.23.3.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-431.23.3.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-431.23.3.el6

red hat advisories RHSA-2014:0981RHSA-2014:0786RHSA-2014:0913

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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-2014-3144 updated cvss 5.4

Kernel: filter: prevent nla extensions to peek beyond the end of the message

  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-123.4.2.el7, kernel 3.10.0-123.4.2.el7, kernel-tools 3.10.0-123.4.2.el7, kernel-tools-libs 3.10.0-123.4.2.el7, kernel-abi-whitelists 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-123.4.2.el7, kernel 3.10.0-123.4.2.el7, kernel-tools 3.10.0-123.4.2.el7, kernel-tools-libs 3.10.0-123.4.2.el7, kernel-abi-whitelists 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7
    fixed: vendor fix RHSA-2014:0786
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-kdump 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-bootwrapper 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, +4 more
    fixed: vendor fix RHSA-2014:0981
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-123.4.2.el7, kernel 3.10.0-123.4.2.el7, kernel-kdump 3.10.0-123.4.2.el7, kernel-tools 3.10.0-123.4.2.el7, kernel-tools-libs 3.10.0-123.4.2.el7, kernel-bootwrapper 3.10.0-123.4.2.el7, +4 more
    fixed: vendor fix RHSA-2014:0786
  • Red Hat Enterprise Linux Server Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-ppc64 2.6.32-431.23.3.el6, kernel-debuginfo-common-s390x 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
    fixed: vendor fix RHSA-2014:0981
  • Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-123.4.2.el7, kernel-debuginfo-common-ppc64 3.10.0-123.4.2.el7, kernel-debuginfo-common-s390x 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7
    fixed: vendor fix RHSA-2014:0786
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-431.23.3.el6, kernel 2.6.32-431.23.3.el6, kernel-firmware 2.6.32-431.23.3.el6, kernel-abi-whitelists 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
    fixed: vendor fix RHSA-2014:0981
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-123.4.2.el7, kernel 3.10.0-123.4.2.el7, kernel-tools 3.10.0-123.4.2.el7, kernel-tools-libs 3.10.0-123.4.2.el7, kernel-abi-whitelists 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7
    fixed: vendor fix RHSA-2014:0786
  • Red Hat Enterprise Linux Workstation Optional (v. 6) kernel 2.6.32-431.23.3.el6, python-perf 2.6.32-431.23.3.el6, kernel-debuginfo-common-i686 2.6.32-431.23.3.el6, kernel-debuginfo-common-x86_64 2.6.32-431.23.3.el6
    fixed: vendor fix RHSA-2014:0981
show 3 more
  • Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-123.4.2.el7, kernel-debuginfo-common-x86_64 3.10.0-123.4.2.el7
    fixed: vendor fix RHSA-2014:0786
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.33-rt32.43.el6rt, kernel-rt-trace 3.10.33-rt32.43.el6rt, kernel-rt-vanilla 3.10.33-rt32.43.el6rt, kernel-rt-firmware 3.10.33-rt32.43.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.33-rt32.43.el6rt
    fixed: vendor fix RHSA-2014:0913
  • Red Hat Enterprise Linux 5 kernel
    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

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound
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.