CVE-2016-3959 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5