#VU92527 Information exposure in Linux kernel - CVE-2012-6548

Vulnerability identifier: #VU92527

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2012-6548

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to information exposure error within the udf_encode_fh() function in fs/udf/namei.c. A local user can gain access to sensitive information.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0143fc5e9f6f5aad4764801015bc8d4b4a278200
https://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html
https://rhn.redhat.com/errata/RHSA-2013-1051.html
https://www.mandriva.com/security/advisories?name=MDVSA-2013:176
https://www.openwall.com/lists/oss-security/2013/03/05/13
https://www.ubuntu.com/usn/USN-1805-1
https://www.ubuntu.com/usn/USN-1808-1
https://www.ubuntu.com/usn/USN-1809-1
https://www.ubuntu.com/usn/USN-1811-1
https://www.ubuntu.com/usn/USN-1812-1
https://www.ubuntu.com/usn/USN-1813-1
https://www.ubuntu.com/usn/USN-1814-1
https://github.com/torvalds/linux/commit/0143fc5e9f6f5aad4764801015bc8d4b4a278200
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.