Input validation error in libreswan

1) Input validation error

EUVDB-ID: #VU33665

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-2052

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via crafted DNS TXT records.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libreswan: 3.0 - 3.1

CPE2.3

• cpe:2.3:a:libreswan.org:libreswan:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:libreswan.org:libreswan:3.1:*:*:*:*:*:*:*

External links

https://libreswan.org/security/CVE-2013-2052/CVE-2013-2052.txt
https://lists.libreswan.org/pipermail/swan-announce/2013/000003.html

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.