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CVE-2016-6302Date: (C)2016-09-16   (M)2018-07-16


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
SECTRACK-1036885
BID-92628
FreeBSD-SA-16:26
RHSA-2016:1940
RHSA-2018:2185
RHSA-2018:2186
RHSA-2018:2187
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
http://www-01.ibm.com/support/docview.wss?uid=swg21995039
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.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
http://www.splunk.com/view/SP-CAAAPSV
http://www.splunk.com/view/SP-CAAAPUE
https://bto.bluecoat.com/security-advisory/sa132
https://git.openssl.org/?p=openssl.git;a=commit;h=e97763c92c655dcf4af2860b3abd2bc4c8a267f9
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
https://www.openssl.org/news/vulnerabilities.html#y2017
https://www.tenable.com/security/tns-2016-16
https://www.tenable.com/security/tns-2016-20
https://www.tenable.com/security/tns-2016-21

CPE    29
cpe:/o:oracle:solaris:10
cpe:/o:oracle:linux:6.0
cpe:/o:oracle:linux:7.0
cpe:/a:openssl:openssl:1.0.2
...
CWE    1
CWE-20
OVAL    15
oval:org.secpod.oval:def:204094
oval:org.secpod.oval:def:204093
oval:org.secpod.oval:def:37387
oval:org.secpod.oval:def:1501583
...

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