Buffer underflow in strongSwan - CVE-2018-5388

 

Buffer underflow in strongSwan - CVE-2018-5388

Published: May 26, 2018 / Updated: May 29, 2018


Vulnerability identifier: #VU13024
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-5388
CWE-ID: CWE-124
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: strongswan.org
Affected software:
strongSwan

Detailed vulnerability description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to buffer underflow stroke_socket.c while improper checking of packet length. A local attacker can submit specially crafted packets, trigger resource exhaustion and cause the service to crash while reading from the socket.


How to mitigate CVE-2018-5388

Update to version 5.6.2.

Sources