CVE-2018-5388

moderate-risk

Published 2018-05-31

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.

Do I need to act?

4.3% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

NETWORK / LOW complexity

Affected Products (6)

Strongswan

Debian Linux

Ubuntu Linux

Affected Vendors

Debian Strongswan Canonical

References (20)

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html

http://packetstormsecurity.com/files/172833/strongSwan-VPN-Charon-Server-Buffer-...

Third Party Advisory http://www.kb.cert.org/vuls/id/338343

Third Party Advisory http://www.securityfocus.com/bid/104263

https://git.strongswan.org/?p=strongswan.git%3Ba=commitdiff%3Bh=0acd1ab4

Third Party Advisory https://security.gentoo.org/glsa/201811-16

Third Party Advisory https://usn.ubuntu.com/3771-1/

Third Party Advisory https://www.debian.org/security/2018/dsa-4229