CVE-2012-6548

Severity: low (CVSS 1.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-03-15 · updated 2026-06-16
Weakness: CWE-200

Description

The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application.

Affected products

Linux kernel: through 3.5.7; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+183)
Red Hat Enterprise Linux: 6.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0143fc5e9f6f5aad4764801015bc8d4b4a278200
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
http://rhn.redhat.com/errata/RHSA-2013-1051.html
http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
http://www.openwall.com/lists/oss-security/2013/03/05/13
http://www.ubuntu.com/usn/USN-1805-1
http://www.ubuntu.com/usn/USN-1808-1
http://www.ubuntu.com/usn/USN-1809-1
http://www.ubuntu.com/usn/USN-1811-1
http://www.ubuntu.com/usn/USN-1812-1
http://www.ubuntu.com/usn/USN-1813-1
http://www.ubuntu.com/usn/USN-1814-1

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