Stack-based buffer overflow in the hfs_mac2asc function in fs/hfs/trans.c in the Linux kernel 2.6 allows local users to cause a denial of s…

published 2012-01-27 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4262

cvss: 7.2; 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 38%
public exploits: 0; none known

Stack-based buffer overflow in the hfs_mac2asc function in fs/hfs/trans.c in the Linux kernel 2.6 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via an HFS image with a crafted len field.

Patch / fix

fixed in 1 distros 1

linux linux_kernel 3.0.10, 3.1.2

kernel RHEL 5 2.6.18-274.17.1.el5
kernel-PAE RHEL 5 2.6.18-274.17.1.el5
kernel-xen RHEL 5 2.6.18-274.17.1.el5
kernel-kdump RHEL 5 2.6.18-274.17.1.el5
kernel-debuginfo-common RHEL 5 2.6.18-274.17.1.el5
kernel RHEL 5.6 EUS 2.6.18-238.35.1.el5
kernel-PAE RHEL 5.6 EUS 2.6.18-238.35.1.el5
kernel-xen RHEL 5.6 EUS 2.6.18-238.35.1.el5

red hat advisories RHSA-2012:0358 RHSA-2012:0007

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-2011-4330 updated 2026-11-05 cvss 6.2

kernel: hfs: add sanity check for file name length

Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-274.17.1.el5, kernel-PAE 2.6.18-274.17.1.el5, kernel-xen 2.6.18-274.17.1.el5, kernel-kdump 2.6.18-274.17.1.el5, kernel-debuginfo-common 2.6.18-274.17.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-274.17.1.el5, kernel-PAE 2.6.18-274.17.1.el5, kernel-xen 2.6.18-274.17.1.el5, kernel-debuginfo-common 2.6.18-274.17.1.el5
fixed: vendor fix RHSA-2012:0007
Red Hat Enterprise Linux EUS (v. 5.6 server) kernel 2.6.18-238.35.1.el5, kernel-PAE 2.6.18-238.35.1.el5, kernel-xen 2.6.18-238.35.1.el5, kernel-kdump 2.6.18-238.35.1.el5, kernel-debuginfo-common 2.6.18-238.35.1.el5
fixed: vendor fix RHSA-2012:0358
Red Hat Enterprise Linux 4 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

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	7.2	AV:L/AC:L/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

Linux kernel rss critical rss

References

openwall.com /lists/oss-security/2011/11/21/14
mailing-list, third-party-advisory
securityfocus.com /bid/50750
vdb-entry, third-party-advisory
bugzilla.redhat.com /show_bug.cgi?id=755431
issue-tracking, third-party-advisory
openwall.com /lists/oss-security/2011/11/21/5
mailing-list, third-party-advisory
git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=bc5b8a9003132ae44559edd63a1623
broken-link, third-party-advisory
lkml.org /lkml/2011/11/9/303
mailing-list, third-party-advisory

Sources

CVE List CVE-2011-4330
NVD CVE-2011-4330

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.

Summary