#VU42149 Input validation error in libreswan - CVE-2013-7294


| Updated: 2020-08-10

Vulnerability identifier: #VU42149

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-7294

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: libreswan.org

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The ikev2parent_inI1outR1 function in pluto/ikev2_parent.c in libreswan before 3.7 allows remote attackers to cause a denial of service (restart) via an IKEv2 I1 notification without a KE payload.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libreswan: 3.0 - 3.5

External links
https://secunia.com/advisories/56276
https://secunia.com/advisories/56915
https://www.osvdb.org/101573
https://github.com/libreswan/libreswan/commit/2899351224fe2940aec37d7656e1e392c0fe07f0
https://lists.libreswan.org/pipermail/swan-announce/2013/000007.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.


Latest bulletins with this vulnerability


Input validation error in libreswan