CVE-2016-3959: Input Validation
Published May 23, 2016
·Updated
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 Software
6 affected components
openSUSE Leap=42.1
Golang Go=1.6
Fedoraproject Fedora=22
Fedoraproject Fedora=23
Fedoraproject Fedora=24
Golang Go<=1.5
Event History
May 23, 2016
CVE Published
via MITRE·07:00 PM
Data Sourced
via MITRE·07:00 PM
Description
Sep 3, 2025
Data Sourced
via Microsoft·09:31 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2016-3959?
CVE-2016-3959 has a medium severity level as it may lead to a denial of service condition.
2
How do I fix CVE-2016-3959?
To fix CVE-2016-3959, upgrade to Go version 1.6.1 or later.
3
What versions of Go are affected by CVE-2016-3959?
CVE-2016-3959 affects Go versions prior to 1.6.1 and all versions before 1.5.4.
4
Can CVE-2016-3959 be exploited remotely?
Yes, CVE-2016-3959 can be exploited remotely by sending a crafted public key.
5
Which operating systems are impacted by CVE-2016-3959?
CVE-2016-3959 impacts specific distributions such as Fedora 22, 23, 24 and openSUSE Leap 42.1.