Vulnerability Description
The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openssl | Openssl | 1.0.1 |
| Oracle | Linux | 6 |
Related Weaknesses (CWE)
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1940.html
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.hThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmThird Party Advisory
- http://www.securityfocus.com/bid/92987Third Party Advisory
- http://www.securitytracker.com/id/1036689
- http://www.splunk.com/view/SP-CAAAPSVThird Party Advisory
- http://www.splunk.com/view/SP-CAAAPUEThird Party Advisory
- https://bto.bluecoat.com/security-advisory/sa132Third Party Advisory
FAQ
What is CVE-2016-2179?
CVE-2016-2179 is a vulnerability with a CVSS score of 7.5 (HIGH). The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial o...
How severe is CVE-2016-2179?
CVE-2016-2179 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-2016-2179?
Check the references section above for vendor advisories and patch information. Affected products include: Openssl Openssl, Oracle Linux.