In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could allow a buffer underflow, which may lead to resource exhaustion and denial of service while reading from the socket.
http://www.kb.cert.org/vuls/id/338343
http://www.securityfocus.com/bid/104263
https://git.strongswan.org/?p=strongswan.git;a=commitdiff;h=0acd1ab4
https://security.gentoo.org/glsa/201811-16
Source: MITRE
Published: 2018-05-31
Updated: 2019-10-09
Type: CWE-787
Base Score: 4
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 2.8
Severity: MEDIUM