#VU92525 Information exposure in Linux kernel - CVE-2012-6546

Vulnerability identifier: #VU92525

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-2012-6546

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 pvc_getname() function in net/atm/pvc.c. A local user can gain access to sensitive information.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3c0c5cfdcd4d69ffc4b9c0907cec99039f30a50a
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e862f1a9b7df4e8196ebec45ac62295138aa3fc2
https://rhn.redhat.com/errata/RHSA-2013-0744.html
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://github.com/torvalds/linux/commit/3c0c5cfdcd4d69ffc4b9c0907cec99039f30a50a
https://github.com/torvalds/linux/commit/e862f1a9b7df4e8196ebec45ac62295138aa3fc2
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2

---

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.