Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Opensuse | Leap | 42.1 |
| Golang | Go | 1.6 |
| Fedoraproject | Fedora | 22 |
Related Weaknesses (CWE)
References
- 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/#%21topic/golang-announce/9eqIHqaWvck
- 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
FAQ
What is CVE-2016-3959?
CVE-2016-3959 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 d...
How severe is CVE-2016-3959?
CVE-2016-3959 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-3959?
Check the references section above for vendor advisories and patch information. Affected products include: Opensuse Leap, Golang Go, Fedoraproject Fedora.