VULNERABILITY INTELLIGENCE
CVE-2013-5018
CVSS score4.3 MEDIUM
EPSS probability2.99%
CISA KEVNot currently listed
Published2013-08-28
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:N/A:P
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.
Weakness classification
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
Primary references
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — Vendor Advisory
- cve@mitre.org — Vendor Advisory
- cve@mitre.org
- cve@mitre.org — Exploit
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108