Bug 660650 (CVE-2008-7270)

Summary:	CVE-2008-7270 openssl: NETSCAPE_REUSE_CIPHER_CHANGE_BUG downgrade-to-disabled ciphersuite attack
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	mvadkert, tmraz
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-05-02 16:58:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	659763, 659764, 659771, 659775
Bug Blocks:

Description Tomas Hoger 2010-12-07 13:47:51 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2008-7270  to
the following vulnerability:

OpenSSL before 0.9.8j, when SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG is enabled, does not prevent modification of the ciphersuite in the session cache, which allows remote attackers to force the use of a disabled cipher via vectors involving sniffing network traffic to discover a session identifier, a different vulnerability than CVE-2010-4180.

References:
http://cvs.openssl.org/chngview?cn=17489
https://bugzilla.redhat.com/show_bug.cgi?id=659462

Comment 1 Tomas Hoger 2010-12-07 13:53:17 UTC

(In reply to comment #0)
> a different vulnerability than CVE-2010-4180.

While CVE description lists these vulnerabilities as different, they are related.  The use of SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG gives an attacker possibility to changed ciphersuite in the stored session (CVE-2010-4180).  The impact of that flaw is greater in pre-0.9.8j versions, as session ciphersuite can be changed to one of those that are not enabled on the server side (CVE-2008-7270).  See bug #659462, comment #0 for the details.

Comment 2 errata-xmlrpc 2010-12-13 18:15:22 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2010:0977 https://rhn.redhat.com/errata/RHSA-2010-0977.html

Comment 3 errata-xmlrpc 2010-12-13 18:35:53 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0978 https://rhn.redhat.com/errata/RHSA-2010-0978.html

Comment 4 errata-xmlrpc 2011-06-22 23:16:56 UTC

This issue has been addressed in following products:

  JBoss Enterprise Web Server 1.0

Via RHSA-2011:0896 https://rhn.redhat.com/errata/RHSA-2011-0896.html