SB2019102107 - Denial of service when processing X.509 certificate chain in Go programming language
Published: October 21, 2019
Security Bulletin ID
SB2019102107
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2019-17596)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of DSA public keys in crypto/x509.Verify. A remote attacker can pass a specially crafted X.509 certificate chain to the application and perform a denial of service attack.
Remediation
Install update from vendor's website.