Vulnerability identifier: #VU43963

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2011-0716

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 perform a denial of service (DoS) attack.

The br_multicast_add_group function in net/bridge/br_multicast.c in the Linux kernel before 2.6.38, when a certain Ethernet bridge configuration is used, allows local users to cause a denial of service (memory corruption and system crash) by sending IGMP packets to a local interface.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.37 - 2.6.37.5

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External links
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6b0d6a9b4296fa16a28d10d416db7a770fc03287
http://www.openwall.com/lists/oss-security/2011/02/17/2
http://bugzilla.redhat.com/show_bug.cgi?id=678169
http://github.com/torvalds/linux/commit/6b0d6a9b4296fa16a28d10d416db7a770fc03287

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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.