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Vulnerability record · CVE-2018-16875 · published 14 December 2018

CVE-2018-16875: Golang go improper input validation vulnerability

Golang · Go

The crypto/x509 package of Go before 1.10.6 and 1.11.x before 1.11.3 does not limit the amount of work performed for each chain verification, which might allow attackers to craft pathological inputs leading to a CPU denial of service. Go TLS servers accepting client certificates and TLS clients are affected.

7.5 CVSS 3.0 High EPSS 6.4% · top 6.6% CWE-20 · Improper input validationCWE-295 · Improper certificate validation
7.5CVSS 3.0 base score, v2 7.8
6.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

The crypto/x509 package of Go before 1.10.6 and 1.11.x before 1.11.3 does not limit the amount of work performed for each chain verification, which might allow attackers to craft pathological inputs leading to a CPU denial of service. Go TLS servers accepting client certificates and TLS clients are affected.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00044.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00010.html
http://www.securityfocus.com/bid/106230 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16875 Issue TrackingThird Party Advisory
https://groups.google.com/forum/?pli=1#%21topic/golang-announce/Kw31K8G7Fi0
https://security.gentoo.org/glsa/201812-09 MitigationThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00044.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00010.html
http://www.securityfocus.com/bid/106230 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16875 Issue TrackingThird Party Advisory
https://groups.google.com/forum/?pli=1#%21topic/golang-announce/Kw31K8G7Fi0
https://security.gentoo.org/glsa/201812-09 MitigationThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-16875), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.