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Fencer Intel
medium 6.2

CVE-2013-4312 json

The Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sen…

published 10y ago modified 4mo ago also EUVD-2013-4205

cvss
6.2
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

The Linux kernel before 4.4.1 allows local users to bypass file-descriptor limits and cause a denial of service (memory consumption) by sending each descriptor over a UNIX socket before closing it, related to net/unix/af_unix.c and net/unix/garbage.c.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.3.3-6

debian advisories DEBIAN-CVE-2013-4312

  • linux Ubuntu 14.04 LTS 3.13.0-83.127
  • linux-lts-wily Ubuntu 14.04 LTS 4.2.0-30.35~14.04.1
  • linux-lts-vivid Ubuntu 14.04 LTS 3.19.0-56.62~14.04.1
  • linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-67.87~14.04.1

ubuntu advisories UBUNTU-CVE-2013-4312

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 7 3.10.0-514.el7
  • perf RHEL 7 3.10.0-514.el7
  • python-perf RHEL 7 3.10.0-514.el7
  • kernel-kdump RHEL 7 3.10.0-514.el7
  • kernel-tools RHEL 7 3.10.0-514.el7
  • kernel-tools-libs RHEL 7 3.10.0-514.el7
  • kernel-bootwrapper RHEL 7 3.10.0-514.el7
  • kernel-abi-whitelists RHEL 7 3.10.0-514.el7

red hat advisories RHSA-2016:2574RHSA-2016:0855RHSA-2016:2584

  • kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-65.1
  • kernel-syms-rt SLE Real Time 11 SP4 3.0.101.rt130-65.1
  • kernel-rt_trace SLE Real Time 11 SP4 3.0.101.rt130-65.1
  • kernel-source-rt SLE Real Time 11 SP4 3.0.101.rt130-65.1
  • kernel-ec2 SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-88.1
  • kernel-pae SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-88.1
  • kernel-xen SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-88.1
  • kernel-syms SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-88.1

suse advisories SUSE-SU-2017:0333-1SUSE-SU-2016:3069-1SUSE-SU-2016:2976-1SUSE-SU-2016:2245-1

Is CVE-2013-4312 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2013-4312 updated cvss 4.9

kernel: File descriptors passed over unix sockets are not properly accounted

  • Red Hat Enterprise Linux 5 kernel
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, kernel-abi-whitelists 3.10.0-514.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, kernel-abi-whitelists 3.10.0-514.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.el7
    fixed: vendor fix RHSA-2016:2574
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6
    fixed: vendor fix RHSA-2016:0855
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-514.rt56.420.el7, kernel-rt-trace 3.10.0-514.rt56.420.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.rt56.420.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-514.rt56.420.el7, kernel-rt-kvm 3.10.0-514.rt56.420.el7, kernel-rt-trace 3.10.0-514.rt56.420.el7, kernel-rt-debug-kvm 3.10.0-514.rt56.420.el7, kernel-rt-trace-kvm 3.10.0-514.rt56.420.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.rt56.420.el7
    fixed: vendor fix RHSA-2016:2584
  • Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-kdump 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-bootwrapper 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, +4 more
    fixed: vendor fix RHSA-2016:0855
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-kdump 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, +6 more
    fixed: vendor fix RHSA-2016:2574
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-ppc64 2.6.32-642.el6, kernel-debuginfo-common-s390x 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6
    fixed: vendor fix RHSA-2016:0855
show 5 more
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-514.el7, kernel-debuginfo-common-x86_64 3.10.0-514.el7, kernel-debuginfo-common-ppc64le 3.10.0-514.el7
    fixed: vendor fix RHSA-2016:2574
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6
    fixed: vendor fix RHSA-2016:0855
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-514.el7, kernel 3.10.0-514.el7, python-perf 3.10.0-514.el7, kernel-tools 3.10.0-514.el7, kernel-tools-libs 3.10.0-514.el7, kernel-abi-whitelists 3.10.0-514.el7, +1 more
    fixed: vendor fix RHSA-2016:2574
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6
    fixed: vendor fix RHSA-2016:0855
  • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.el7
    fixed: vendor fix RHSA-2016:2574

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 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.2 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/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.