CVE-2016-3959: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 4.4% chance of exploitation in the next 30 days.

The Verify function in crypto/dsa/dsa.go in Go before 1.5.4 and 1.6.x before 1.6.1 does not properly check parameters passed to the big integer library, which might allow remote attackers to cause a denial of service (infinite loop) via a crafted public key to a program that uses HTTPS client certificates or SSH server libraries.

Affected products

• Fedoraproject Fedora: version 22 only; version 23 only; version 24 only
• Golang Go: version 1.6 only; up to and including 1.5
• Opensuse Leap: version 42.1 only

Published 2016-05-23. Last modified 2026-06-17.