CVE-2013-5018

Description

The is_asn1 function in strongSwan 4.1.11 through 5.0.4 does not properly validate the return value of the asn1_length function, which allows remote attackers to cause a denial of service (segmentation fault) via a (1) XAuth username, (2) EAP identity, or (3) PEM encoded file that starts with a 0x04, 0x30, or 0x31 character followed by an ASN.1 length value that triggers an integer overflow.

References

http://www.securityfocus.com/bid/61564

http://strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-%28cve-2013-5018%29.html

http://strongswan.org/blog/2013/08/01/strongswan-5.1.0-released.html

http://secunia.com/advisories/54524

http://secunia.com/advisories/54315

http://lists.opensuse.org/opensuse-updates/2013-08/msg00050.html

http://lists.opensuse.org/opensuse-updates/2013-08/msg00022.html

http://lists.opensuse.org/opensuse-updates/2013-08/msg00021.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3