Vulnerability identifier: #VU44064

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-2320

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ConnMan
Universal components / Libraries / Libraries used by multiple products

Vendor: kernel.org

Description

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

ConnMan before 0.85 does not ensure that netlink messages originate from the kernel, which allows remote attackers to bypass intended access restrictions and cause a denial of service via a crafted netlink message.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ConnMan: 0.1 - 0.83

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External links
http://git.kernel.org/?p=network/connman/connman.git;a=commit;h=b0ec6eb4466acc57a9ea8be52c17b674b6ea0618
http://git.kernel.org/?p=network/connman/connman.git;a=commit;h=c1b968984212b46bea1330f5ae029507b9bfded9
http://secunia.com/advisories/49033
http://secunia.com/advisories/49186
http://security.gentoo.org/glsa/glsa-201205-02.xml
http://www.openwall.com/lists/oss-security/2012/05/07/10
http://www.openwall.com/lists/oss-security/2012/05/07/2
http://www.openwall.com/lists/oss-security/2012/05/07/6
http://www.osvdb.org/81704
http://www.securityfocus.com/bid/53406
http://bugzilla.novell.com/show_bug.cgi?id=715172
http://exchange.xforce.ibmcloud.com/vulnerabilities/75465

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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.