#VU8168 Null pointer dereference in Openswan - CVE-2013-6466

Vulnerability identifier: #VU8168

Vulnerability risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-6466

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Openswan
Server applications / Remote access servers, VPN

Vendor: openswan.org

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to NULL pointer dereference when handling malicious input. A remote attacker can supply specially crafted IKEv2 packets that lack expected payloads and cause IKE daemon to restart.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Update to version 2.6.40.

Vulnerable software versions

Openswan: 2.6.39

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External links
https://libreswan.org/security/CVE-2013-6467/CVE-2013-6467.txt

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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.