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Fencer Intel
low 2.9

CVE-2014-2568 json

Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.c in the Linux kernel through 3.13.6 allows…

published 12y ago modified 4mo ago also EUVD-2014-2603

cvss
2.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.c in the Linux kernel through 3.13.6 allows attackers to obtain sensitive information from kernel memory by leveraging the absence of a certain orphaning operation. NOTE: the affected code was moved to the skb_zerocopy function in net/core/skbuff.c before the vulnerability was announced.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.13.7-1

debian advisories DEBIAN-CVE-2014-2568

  • linux Ubuntu 14.04 LTS 3.13.0-29.53

ubuntu advisories UBUNTU-CVE-2014-2568

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 3.10.0-123.4.2.el7
  • perf RHEL 7 3.10.0-123.4.2.el7
  • python-perf RHEL 7 3.10.0-123.4.2.el7
  • kernel-kdump RHEL 7 3.10.0-123.4.2.el7
  • kernel-tools RHEL 7 3.10.0-123.4.2.el7
  • kernel-tools-libs RHEL 7 3.10.0-123.4.2.el7
  • kernel-bootwrapper RHEL 7 3.10.0-123.4.2.el7
  • kernel-abi-whitelists RHEL 7 3.10.0-123.4.2.el7

red hat advisories RHSA-2014:0786

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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-2014-2568 updated cvss 2.9

kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()ied

  • 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 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 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
    +2 more products
    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 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 Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 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

1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • lkml.org https://lkml.org/lkml/2014/3/20/421 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.9 AV:A/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
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.