(Cisco Issues Advisory for Cisco Content Security Management Appliance Update Servers) OpenSSL Multiple Bugs Let Remote Users Cause the Target Service to Crash
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SecurityTracker Alert ID: 1036924 |
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SecurityTracker URL: http://securitytracker.com/id/1036924
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CVE Reference:
CVE-2016-6302, CVE-2016-6303, CVE-2016-6306
(Links to External Site)
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Date: Sep 29 2016
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Impact:
Denial of service via network
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Vendor Confirmed: Yes
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Description:
Multiple vulnerabilities were reported in OpenSSL. A remote user can cause the target service or application to crash. Cisco Content Security Management Appliance Update Servers are affected.
A remote user can send a specially crafted SHA512 TLS session ticket to trigger an out-of-bounds memory read error and cause the target server to crash [CVE-2016-6302].
A remote user can trigger an integer overflow in the MDC2_Update() function in 'crypto/mdc2/mdc2dgst.c' and cause the target service to crash in certain cases [CVE-2016-6303].
A remote user can trigger an out-of-bounds memory read error in the processing of certain TLS/SSL protocol handshake messages and cause the target application or service to crash [CVE-2016-6306]. Version 1.1.0 is not affected.
A remote user can trigger a memory allocation error in tls_get_message_header() to temporarily consume excessive memory resources on the target system [CVE-2016-6307]. DTLS users are not affected. Version 1.1.0 is affected.
A remote user can trigger a memory allocation error in dtls1_preprocess_fragment() to temporarily consume excessive memory resources on the target system [CVE-2016-6308]. TLS users are not affected. Version 1.1.0 is affected.
Shi Lei (Gear Team, Qihoo 360 Inc.) reported these vulnerabilities.
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Impact:
A remote user can cause the target service or application to crash.
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Solution:
Cisco has issued an advisory for CVE-2016-6302, CVE-2016-6303, and CVE-2016-6306 for Cisco Content Security Management Appliance Update Servers.
The Cisco advisory is available at:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl
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Vendor URL: tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl (Links to External Site)
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Cause:
Access control error, Boundary error, Resource error
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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