Unrated severityNVD Advisory· Published Aug 28, 2013· Updated Apr 29, 2026
CVE-2013-5018
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.
Affected products
9cpe:2.3:a:strongswan:strongswan:4.1.11:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:strongswan:strongswan:4.1.11:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- lists.strongswan.org/pipermail/users/2013-July/009540.htmlnvdExploit
- secunia.com/advisories/54315nvdVendor Advisory
- secunia.com/advisories/54524nvdVendor Advisory
- strongswan.org/blog/2013/08/01/strongswan-5.1.0-released.htmlnvdVendor Advisory
- strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-%28cve-2013-5018%29.htmlnvdVendor Advisory
- lists.opensuse.org/opensuse-updates/2013-08/msg00021.htmlnvd
- lists.opensuse.org/opensuse-updates/2013-08/msg00022.htmlnvd
- lists.opensuse.org/opensuse-updates/2013-08/msg00050.htmlnvd
- www.securityfocus.com/bid/61564nvd
News mentions
0No linked articles in our index yet.