CVE-2016-6302
UnknownEPSS 26.44%
Last modified
CVE-2016-6302 is a vulnerability of currently unknown severity. The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short.. EPSS estimates a 26.44% chance of exploitation in the next 30 days.
Description
The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openssl | Openssl | 1.0.1 |
| Openssl | Openssl | 1.0.1a |
| Openssl | Openssl | 1.0.1b |
| Openssl | Openssl | 1.0.1c |
| Openssl | Openssl | 1.0.1d |
| Openssl | Openssl | 1.0.1e |
| Openssl | Openssl | 1.0.1f |
| Openssl | Openssl | 1.0.1g |
| Openssl | Openssl | 1.0.1h |
| Openssl | Openssl | 1.0.1i |
| Openssl | Openssl | 1.0.1j |
| Openssl | Openssl | 1.0.1k |
| Openssl | Openssl | 1.0.1l |
| Openssl | Openssl | 1.0.1m |
| Openssl | Openssl | 1.0.1n |
| Openssl | Openssl | 1.0.1o |
| Openssl | Openssl | 1.0.1p |
| Openssl | Openssl | 1.0.1q |
| Openssl | Openssl | 1.0.1r |
| Openssl | Openssl | 1.0.1s |
| Openssl | Openssl | 1.0.1t |
| Openssl | Openssl | 1.0.2 |
| Openssl | Openssl | 1.0.2a |
| Openssl | Openssl | 1.0.2b |
| Openssl | Openssl | 1.0.2c |
| Openssl | Openssl | 1.0.2d |
| Openssl | Openssl | 1.0.2e |
| Openssl | Openssl | 1.0.2f |
| Openssl | Openssl | 1.0.2g |
| Openssl | Openssl | 1.0.2h |
| Oracle | Linux | 6 |
| Oracle | Linux | 7 |
| Oracle | Solaris | 10 |
| Oracle | Solaris | 11.3 |
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759Third Party Advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/92628Third Party Advisory, VDB Entry
- 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
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312Third Party Advisory
- https://www.tenable.com/security/tns-2016-16Third Party Advisory
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759Third Party Advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/92628Third Party Advisory, VDB Entry
- 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
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312Third Party Advisory
- https://www.tenable.com/security/tns-2016-16Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-6302?
The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short.
How severe is CVE-2016-6302?
Severity scoring for CVE-2016-6302 is pending analysis. The EPSS model estimates a 26.44% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6302?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2016-6302?
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Scan your code nowSource: NVD / NIST