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Fencer Intel
low 2.1

CVE-2011-2203 json

The hfs_find_init function in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and Oops) by m…

published 2012-01-27 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2193

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

The hfs_find_init function in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and Oops) by mounting an HFS file system with a malformed MDB extent record.

Patch / fix

  • kernel RHEL 5 2.6.18-274.12.1.el5
  • kernel-PAE RHEL 5 2.6.18-274.12.1.el5
  • kernel-xen RHEL 5 2.6.18-274.12.1.el5
  • kernel-kdump RHEL 5 2.6.18-274.12.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-274.12.1.el5

red hat advisories RHSA-2011:1479

  • kernel-source openSUSE Tumbleweed 4.8.13-1.1

opensuse advisories openSUSE-SU-2024:10128-1

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-2011-2203 updated cvss 4.0

kernel: hfs_find_init() sb->ext_tree NULL pointer dereference

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-274.12.1.el5, kernel-PAE 2.6.18-274.12.1.el5, kernel-xen 2.6.18-274.12.1.el5, kernel-kdump 2.6.18-274.12.1.el5, kernel-debuginfo-common 2.6.18-274.12.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-274.12.1.el5, kernel-PAE 2.6.18-274.12.1.el5, kernel-xen 2.6.18-274.12.1.el5, kernel-kdump 2.6.18-274.12.1.el5, kernel-debuginfo-common 2.6.18-274.12.1.el5
    fixed: vendor fix RHSA-2011:1479

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

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=712774 referenced PoC, tagged "exploit" by a source, unverified
  • lkml.org https://lkml.org/lkml/2011/6/8/154 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
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.