SB2020022039 - Denial of service in Go Crypto
Published: February 20, 2020 Updated: November 21, 2022
Security Bulletin ID
SB2020022039
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Reachable Assertion (CVE-ID: CVE-2020-9283)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
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.
Remediation
Install update from vendor's website.
References
- https://groups.google.com/forum/#!topic/golang-announce/3L45YRc91SY
- http://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html
- https://lists.debian.org/debian-lts-announce/2020/11/msg00027.html
- https://lists.debian.org/debian-lts-announce/2020/11/msg00031.html
- https://packetstormsecurity.com/files/156480/Go-SSH-0.0.2-Denial-Of-Service.html