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Fencer Intel
high 7.6

CVE-2012-3400 json

Heap-based buffer overflow in the udf_load_logicalvol function in fs/udf/super.c in the Linux kernel before 3.4.5 allows remote attackers t…

published 2012-10-03 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3371

cvss
7.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.8%
EPSS 7.8% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Heap-based buffer overflow in the udf_load_logicalvol function in fs/udf/super.c in the Linux kernel before 3.4.5 allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted UDF filesystem.

Patch / fix

  • linux linux_kernel 3.0.37, 3.2.23, 3.4.5
  • linux Debian 14, Debian 13, Debian 12 3.2.23-1

debian advisories DEBIAN-CVE-2012-3400

  • kernel RHEL 6 2.6.32-279.14.1.el6
  • perf RHEL 6 2.6.32-279.14.1.el6
  • python-perf RHEL 6 2.6.32-279.14.1.el6
  • kernel-kdump RHEL 6 2.6.32-279.14.1.el6
  • kernel-firmware RHEL 6 2.6.32-279.14.1.el6
  • kernel-bootwrapper RHEL 6 2.6.32-279.14.1.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-279.14.1.el6
  • kernel-debuginfo-common-ppc64 RHEL 6 2.6.32-279.14.1.el6

red hat advisories RHSA-2012:1426RHSA-2013:0594RHSA-2012:1491

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-2012-3400 updated cvss 6.2

kernel: udf: buffer overflow when parsing sparing table

  • Red Hat Enterprise Linux 4 kernel Red Hat Enterprise MRG 1 kernel-rt
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-348.2.1.el5, kernel-PAE 2.6.18-348.2.1.el5, kernel-xen 2.6.18-348.2.1.el5, kernel-kdump 2.6.18-348.2.1.el5, kernel-debuginfo-common 2.6.18-348.2.1.el5
    fixed: vendor fix RHSA-2013:0594
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-debuginfo-common-i686 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-debuginfo-common-i686 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, kernel-kdump 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-bootwrapper 2.6.32-279.14.1.el6, kernel-debuginfo-common-i686 2.6.32-279.14.1.el6, +3 more Red Hat Enterprise Linux Server Optional (v. 6) kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-debuginfo-common-i686 2.6.32-279.14.1.el6, kernel-debuginfo-common-ppc64 2.6.32-279.14.1.el6, kernel-debuginfo-common-s390x 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-279.14.1.el6, kernel 2.6.32-279.14.1.el6, kernel-firmware 2.6.32-279.14.1.el6, kernel-debuginfo-common-i686 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) kernel 2.6.32-279.14.1.el6, python-perf 2.6.32-279.14.1.el6, kernel-debuginfo-common-i686 2.6.32-279.14.1.el6, kernel-debuginfo-common-x86_64 2.6.32-279.14.1.el6
    fixed: vendor fix RHSA-2012:1426
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.2.33-rt50.66.el6rt, mrg-rt-release 3.2.33-rt50.66.el6rt, kernel-rt-trace 3.2.33-rt50.66.el6rt, kernel-rt-vanilla 3.2.33-rt50.66.el6rt, kernel-rt-firmware 3.2.33-rt50.66.el6rt, kernel-rt-debuginfo-common-x86_64 3.2.33-rt50.66.el6rt
    fixed: vendor fix RHSA-2012:1491

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

7.81% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/adee11b2085bee90bd8f4f52123ffb07882d6256 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

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.