Improper Certificate Validation in Go programming language - CVE-2020-7919
Published: March 16, 2020 / Updated: July 13, 2020
Vulnerability identifier: #VU29673
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-7919
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Go programming language
Go programming language
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Go before 1.12.16 and 1.13.x before 1.13.7 (and the crypto/cryptobyte package before 0.0.0-20200124225646-8b5121be2f68 for Go) allows attacks on clients (resulting in a panic) via a malformed X.509 certificate.
How to mitigate CVE-2020-7919
Install update from vendor's website.
Sources
- https://groups.google.com/forum/#!forum/golang-announce
- https://groups.google.com/forum/#!topic/golang-announce/Hsw4mHYc470
- https://groups.google.com/forum/#!topic/golang-announce/-sdUB4VEQkA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S43VLYRURELDWX4D5RFOYBNFGO6CGBBC/
- https://security.netapp.com/advisory/ntap-20200327-0001/