Bug 771780 (CVE-2011-4619)

Summary:	CVE-2011-4619 openssl: SGC restart DoS attack
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	erik-fedora, kalevlember, ktietz, lfarkas, mvadkert, rjones, tmraz, wnefal+redhatbugzilla
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-09-25 07:57:13 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:	773239, 773240, 773241, 773243, 773246, 773330, 773331, 846586
Bug Blocks:	771783

Description Vincent Danen 2012-01-04 22:50:40 UTC

SGC Restart DoS Attack (CVE-2011-4619)
======================================

Support for handshake restarts for server gated cryptograpy (SGC) can
be used in a denial-of-service attack.

Thanks to Adam Langley <agl> for identifying and fixing
this issue.

Affected users should upgrade to OpenSSL 1.0.0f or 0.9.8s.

Reference: http://openssl.org/news/secadv_20120104.txt

Comment 1 Vincent Danen 2012-01-04 23:10:16 UTC

Seems to be the fix here:

http://cvs.openssl.org/chngview?cn=21940 (0.9.8)
http://cvs.openssl.org/chngview?cn=21927 (1.0.0)

Comment 2 Tomas Mraz 2012-01-05 07:46:41 UTC

This is the real commit for 0.9.8:
http://cvs.openssl.org/chngview?cn=21939

And for 1.0.0 this is also needed:
http://cvs.openssl.org/chngview?cn=21930

Comment 7 Fedora Update System 2012-01-11 06:13:25 UTC

openssl-1.0.0f-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Tomas Hoger 2012-01-11 14:53:41 UTC

Created mingw32-openssl tracking bugs for this issue

Affects: fedora-all [bug 773330]
Affects: epel-5 [bug 773331]

Comment 10 Fedora Update System 2012-01-15 20:10:02 UTC

openssl-1.0.0f-1.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 15 errata-xmlrpc 2012-01-24 21:05:15 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2012:0060 https://rhn.redhat.com/errata/RHSA-2012-0060.html

Comment 16 errata-xmlrpc 2012-01-24 21:05:31 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:0059 https://rhn.redhat.com/errata/RHSA-2012-0059.html

Comment 17 errata-xmlrpc 2012-02-01 18:57:04 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2012:0086 https://rhn.redhat.com/errata/RHSA-2012-0086.html

Comment 18 errata-xmlrpc 2012-02-15 16:09:54 UTC

This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2012:0109 https://rhn.redhat.com/errata/RHSA-2012-0109.html

Comment 19 errata-xmlrpc 2012-02-21 05:05:53 UTC

This issue has been addressed in following products:

  RHEV-H, V2V and Agents for RHEL-5

Via RHSA-2012:0168 https://rhn.redhat.com/errata/RHSA-2012-0168.html

Comment 20 Tomas Hoger 2012-03-12 17:27:13 UTC

The fix for this issue was corrected in upstream OpenSSL versions 0.9.8u and 1.0.0h:
  http://cvs.openssl.org/chngview?cn=22131

It seems this bug could cause SGC handshakes to fail after the security patch was applied.

Comment 21 errata-xmlrpc 2012-09-24 16:02:40 UTC

This issue has been addressed in following products:

  JBoss Enterprise Application Platform 6.0.0

Via RHSA-2012:1308 https://rhn.redhat.com/errata/RHSA-2012-1308.html

Comment 22 errata-xmlrpc 2012-09-24 16:03:40 UTC

This issue has been addressed in following products:

  JBoss Enterprise Application Platform 5.1.2

Via RHSA-2012:1307 https://rhn.redhat.com/errata/RHSA-2012-1307.html

Comment 23 errata-xmlrpc 2012-09-24 16:04:49 UTC

This issue has been addressed in following products:

  JBoss Enterprise Web Server 1.0.2

Via RHSA-2012:1306 https://rhn.redhat.com/errata/RHSA-2012-1306.html