CVE-2013-5018

N/A Unknown
Published: August 28, 2013 Modified: April 29, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-08/msg00021.html
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-updates/2013-08/msg00022.html
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-updates/2013-08/msg00050.html
Source: cve@mitre.org
http://secunia.com/advisories/54315
Source: cve@mitre.org
Vendor Advisory
http://secunia.com/advisories/54524
Source: cve@mitre.org
Vendor Advisory
http://strongswan.org/blog/2013/08/01/strongswan-5.1.0-released.html
Source: cve@mitre.org
Vendor Advisory
http://strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-%28cve-2013-5018%29.html
Source: cve@mitre.org
Vendor Advisory
http://www.securityfocus.com/bid/61564
Source: cve@mitre.org
https://lists.strongswan.org/pipermail/users/2013-July/009540.html
Source: cve@mitre.org
Exploit
http://lists.opensuse.org/opensuse-updates/2013-08/msg00021.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2013-08/msg00022.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2013-08/msg00050.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/54315
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/54524
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://strongswan.org/blog/2013/08/01/strongswan-5.1.0-released.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-%28cve-2013-5018%29.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.securityfocus.com/bid/61564
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.strongswan.org/pipermail/users/2013-July/009540.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
2.9%
86th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

opensuse strongswan

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