Bug 660650 – CVE-2008-7270 openssl: NETSCAPE_REUSE_CIPHER_CHANGE_BUG downgrade-to-disabled ciphersuite attack

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Bug 660650 - (CVE-2008-7270) CVE-2008-7270 openssl: NETSCAPE_REUSE_CIPHER_CHANGE_BUG downgrade-to-disabled ciphersuite attack

Summary:	CVE-2008-7270 openssl: NETSCAPE_REUSE_CIPHER_CHANGE_BUG downgrade-to-disabled...

Status:	CLOSED ERRATA

Aliases:	CVE-2008-7270

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	Unspecified Unspecified

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,source=openssl,report...
Keywords:	Security

Depends On:	659763 659764 659771 659775
Blocks:
	Show dependency tree / graph

Reported:	2010-12-07 08:47 EST by Tomas Hoger
Modified:	2014-05-02 12:58 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-05-02 12:58:27 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
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Verified Versions:
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2010:0977	normal	SHIPPED_LIVE	Moderate: openssl security update	2010-12-13 13:14:58 EST
Red Hat Product Errata	RHSA-2010:0978	normal	SHIPPED_LIVE	Moderate: openssl security update	2010-12-13 13:35:43 EST
Red Hat Product Errata	RHSA-2011:0896	normal	SHIPPED_LIVE	Moderate: JBoss Enterprise Web Server 1.0.2 update	2011-06-22 19:16:28 EDT

Groups: None (edit)

Description Tomas Hoger 2010-12-07 08:47:51 EST

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 08:53:17 EST

(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 13:15:22 EST

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 13:35:53 EST

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 19:16:56 EDT

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

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