Vulnerability identifier: #VU69447

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-9283

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
crypto
Universal components / Libraries / Libraries used by multiple products

Vendor:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion during signature verification process. A remote attacker can supply a specially crafted certificate to the application (server or client) and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

---

External links
http://groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY
http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html
http://lists.debian.org/debian-lts-announce/2020/10/msg00014.html
http://lists.debian.org/debian-lts-announce/2020/11/msg00027.html
http://lists.debian.org/debian-lts-announce/2020/11/msg00031.html
http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?