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Fencer Intel
medium 6.2

CVE-2013-4591 json

Buffer overflow in the __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a…

published 2013-11-19 12 y ago modified 2026-06-16 4 mo ago also EUVD-2013-4448

cvss
6.2
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 47%
public exploits
0
none known

Summary

Buffer overflow in the __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a getxattr system call for the system.nfs4_acl extended attribute of a pathname on an NFSv4 filesystem.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.8-1

debian advisories DEBIAN-CVE-2013-4591

  • kernel RHEL 6 2.6.32-431.el6
  • perf RHEL 6 2.6.32-431.el6
  • python-perf RHEL 6 2.6.32-431.el6
  • kernel-kdump RHEL 6 2.6.32-431.el6
  • kernel-firmware RHEL 6 2.6.32-431.el6
  • kernel-bootwrapper RHEL 6 2.6.32-431.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-431.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-431.el6

red hat advisories RHSA-2014:0284RHSA-2013:1645

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-2013-4591 updated cvss 6.2

kernel: nfs: missing check for buffer length in __nfs4_get_acl_uncached

  • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4) kernel 2.6.32-358.37.1.el6, python-perf 2.6.32-358.37.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.37.1.el6
    fixed: vendor fix RHSA-2014:0284
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-431.el6, kernel 2.6.32-431.el6, kernel-firmware 2.6.32-431.el6, kernel-abi-whitelists 2.6.32-431.el6, kernel-debuginfo-common-i686 2.6.32-431.el6, kernel-debuginfo-common-x86_64 2.6.32-431.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-431.el6, kernel-debuginfo-common-i686 2.6.32-431.el6, kernel-debuginfo-common-x86_64 2.6.32-431.el6
    fixed: vendor fix RHSA-2013:1645
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.4) perf 2.6.32-358.37.1.el6, kernel 2.6.32-358.37.1.el6, kernel-firmware 2.6.32-358.37.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.37.1.el6
    fixed: vendor fix RHSA-2014:0284
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-431.el6, kernel-debuginfo-common-x86_64 2.6.32-431.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-431.el6, kernel 2.6.32-431.el6, kernel-kdump 2.6.32-431.el6, kernel-firmware 2.6.32-431.el6, kernel-bootwrapper 2.6.32-431.el6, kernel-abi-whitelists 2.6.32-431.el6, +4 more
    fixed: vendor fix RHSA-2013:1645
  • Red Hat Enterprise Linux Server EUS (v. 6.4) perf 2.6.32-358.37.1.el6, kernel 2.6.32-358.37.1.el6, kernel-kdump 2.6.32-358.37.1.el6, kernel-firmware 2.6.32-358.37.1.el6, kernel-bootwrapper 2.6.32-358.37.1.el6, kernel-debuginfo-common-i686 2.6.32-358.37.1.el6, +3 more
    fixed: vendor fix RHSA-2014:0284
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-431.el6, kernel-debuginfo-common-i686 2.6.32-431.el6, kernel-debuginfo-common-ppc64 2.6.32-431.el6, kernel-debuginfo-common-s390x 2.6.32-431.el6, kernel-debuginfo-common-x86_64 2.6.32-431.el6
    fixed: vendor fix RHSA-2013:1645
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.4) kernel 2.6.32-358.37.1.el6, python-perf 2.6.32-358.37.1.el6, kernel-debuginfo-common-i686 2.6.32-358.37.1.el6, kernel-debuginfo-common-ppc64 2.6.32-358.37.1.el6, kernel-debuginfo-common-s390x 2.6.32-358.37.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.37.1.el6
    fixed: vendor fix RHSA-2014:0284
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-431.el6, kernel 2.6.32-431.el6, kernel-firmware 2.6.32-431.el6, kernel-abi-whitelists 2.6.32-431.el6, kernel-debuginfo-common-i686 2.6.32-431.el6, kernel-debuginfo-common-x86_64 2.6.32-431.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-431.el6, kernel-debuginfo-common-i686 2.6.32-431.el6, kernel-debuginfo-common-x86_64 2.6.32-431.el6
    fixed: vendor fix RHSA-2013:1645
show 1 more
  • 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 Linux HPC Node EUS (v. 6.4) kernel-headers 2.6.32-358.37.1.el6 Red Hat Enterprise Linux Server EUS (v. 6.4) kernel-headers 2.6.32-358.37.1.el6 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

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 6.2 AV:L/AC:H/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.