Input validation error in Go programming language - CVE-2016-3959
Published: May 23, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32310
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-3959
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Go programming language
Go programming language
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
How to mitigate CVE-2016-3959
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182526.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183106.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183137.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00077.html
- http://rhn.redhat.com/errata/RHSA-2016-1538.html
- http://www.openwall.com/lists/oss-security/2016/04/05/1
- http://www.openwall.com/lists/oss-security/2016/04/05/2
- https://go-review.googlesource.com/#/c/21533/
- https://groups.google.com/forum/#!topic/golang-announce/9eqIHqaWvck