Bug 771780 - (CVE-2011-4619) CVE-2011-4619 openssl: SGC restart DoS attack
CVE-2011-4619 openssl: SGC restart DoS attack
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20120104,repor...
: Security
Depends On: 773239 773240 773241 773243 773246 773330 773331 846586
Blocks: 771783
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Reported: 2012-01-04 17:50 EST by Vincent Danen
Modified: 2015-11-24 09:46 EST (History)
8 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-09-25 03:57:13 EDT
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RHEL 7.3 requirements from Atomic Host:


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Description Vincent Danen 2012-01-04 17:50:40 EST
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@chromium.org> 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 18:10:16 EST
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 02:46:41 EST
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 01:13:25 EST
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 09:53:41 EST
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 15:10:02 EST
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 16:05:15 EST
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 16:05:31 EST
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 13:57:04 EST
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 11:09:54 EST
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 00:05:53 EST
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 13:27:13 EDT
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 12:02:40 EDT
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 12:03:40 EDT
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 12:04:49 EDT
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

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