#VU45312 Buffer overflow in Linux kernel - CVE-2011-0712

Vulnerability identifier: #VU45312

Vulnerability risk: Medium

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

CVE-ID: CVE-2011-0712

CWE-ID: CWE-119

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 execute arbitrary code.

Multiple buffer overflows in the caiaq Native Instruments USB audio functionality in the Linux kernel before 2.6.38-rc4-next-20110215 might allow attackers to cause a denial of service or possibly have unspecified other impact via a long USB device name, related to (1) the snd_usb_caiaq_audio_init function in sound/usb/caiaq/audio.c and (2) the snd_usb_caiaq_midi_init function in sound/usb/caiaq/midi.c.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.38

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External links
https://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=commit;h=eaae55dac6b64c0616046436b294e69fc5311581
https://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.38-rc4-next-20110215.bz2
https://www.openwall.com/lists/oss-security/2011/02/16/11
https://www.openwall.com/lists/oss-security/2011/02/16/12
https://www.openwall.com/lists/oss-security/2011/02/16/5
https://www.securityfocus.com/bid/46419
https://www.ubuntu.com/usn/USN-1146-1
https://bugzilla.redhat.com/show_bug.cgi?id=677881
https://exchange.xforce.ibmcloud.com/vulnerabilities/65461

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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.