Vulnerability identifier: #VU43994

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2011-2183

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a crafted application.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Linux kernel: 2.6.39 - 2.6.39.1

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External links
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2b472611a32a72f4a118c069c2d62a1a3f087afd
http://www.openwall.com/lists/oss-security/2011/06/06/1
http://bugzilla.redhat.com/show_bug.cgi?id=710338
http://github.com/torvalds/linux/commit/2b472611a32a72f4a118c069c2d62a1a3f087afd

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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. However, proof of concept for this vulnerability is available.