CVE-2013-5018

2013-08-2800:00:00

ubuntu.com

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.042

Percentile

92.3%

JSON

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.