CVE-2016-6302

openssl: Insufficient TLS session ticket HMAC length checks

Published Sep 16, 2016 CVSS 3.0 · 7.5 High EPSS 27.8% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-637-1 openssl security update
Debian DSA Debian DSA DSA-3673-1 openssl security update
Ubuntu USN Ubuntu USN USN-3087-1 OpenSSL vulnerabilities
References
Link Providers
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2016-1940.html cve-icon cve-icon
http://www-01.ibm.com/support/docview.wss?uid=swg21995039 cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html cve-icon cve-icon
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html cve-icon cve-icon
http://www.securityfocus.com/bid/92628 cve-icon cve-icon
http://www.securitytracker.com/id/1036885 cve-icon cve-icon
http://www.splunk.com/view/SP-CAAAPSV cve-icon cve-icon
http://www.splunk.com/view/SP-CAAAPUE cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:2185 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:2186 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2018:2187 cve-icon cve-icon
https://bto.bluecoat.com/security-advisory/sa132 cve-icon cve-icon
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf cve-icon cve-icon
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=e97763c92c655dcf4af2860b3abd2bc4c8a267f9 cve-icon cve-icon
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2016-6302 cve-icon
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2016-6302 cve-icon
https://www.openssl.org/news/secadv/20160922.txt cve-icon
https://www.tenable.com/security/tns-2016-16 cve-icon cve-icon
https://www.tenable.com/security/tns-2016-20 cve-icon cve-icon
https://www.tenable.com/security/tns-2016-21 cve-icon cve-icon
History
Type Values Removed Values Added
Metrics epss

{'score': 0.08613}

epss

{'score': 0.17602}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 1:29 AM
Reserved
Jul 26, 2016, 12:00 AM
Status
Modified
Published
Sep 16, 2016, 5:59 AM
Modified
Jun 17, 2026, 12:50 AM
Severity
Moderate
Public date
Aug 23, 2016, 12:00 AM