CVE-2018-17540

Name: CVE-2018-17540
Creator: NVD / NIST
Published: 2018-10-03T20:29:09.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.51%

Last modified Jun 17, 2026

CVE-2018-17540 is a vulnerability of currently unknown severity. The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.. EPSS estimates a 3.51% chance of exploitation in the next 30 days.

Description

The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.

Metrics

EPSS Probability

3.51%

87.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Strongswan	Strongswan	< 5.7.1
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04

References

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
https://download.strongswan.org/security/CVE-2018-17540/Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00001.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201811-16Third Party Advisory
https://usn.ubuntu.com/3774-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4309Third Party Advisory
https://www.strongswan.org/blog/2018/10/01/strongswan-vulnerability-%28cve-2018-17540%29.html
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
https://download.strongswan.org/security/CVE-2018-17540/Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00001.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201811-16Third Party Advisory
https://usn.ubuntu.com/3774-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4309Third Party Advisory
https://www.strongswan.org/blog/2018/10/01/strongswan-vulnerability-%28cve-2018-17540%29.html

Timeline

Published: Oct 3, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17540?

The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate.

How severe is CVE-2018-17540?

Severity scoring for CVE-2018-17540 is pending analysis. The EPSS model estimates a 3.51% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17540?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-17540?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST