#VU43402 Resource management error in Linux kernel - CVE-2012-4467

Vulnerability identifier: #VU43402

Vulnerability risk: High

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2012-4467

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The (1) do_siocgstamp and (2) do_siocgstampns functions in net/socket.c in the Linux kernel before 3.5.4 use an incorrect argument order, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (system crash) via a crafted ioctl call.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.0 - 3.0.44, 3.1 - 3.1.10, 3.2 - 3.2.30, 3.3 - 3.3.8, 3.4 - 3.4.13, 3.5.1 - 3.5.2

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External links
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ed6fe9d614fc1bca95eb8c0ccd0e92db00ef9d5d
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.4
https://www.openwall.com/lists/oss-security/2012/10/04/2
https://www.securityfocus.com/bid/55785
https://github.com/torvalds/linux/commit/ed6fe9d614fc1bca95eb8c0ccd0e92db00ef9d5d

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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