Bug 722415 (CVE-2011-2686, CVE-2011-2705, CVE-2011-3009)

Summary: CVE-2011-2686 CVE-2011-2705 CVE-2011-3009 ruby: Properly initialize the random number generator when forking new process
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: amarecek, azelinka, eng-i18n-bugs, jeremy, mmorsi, mtasaka, tagoh, vanmeeuwen+fedora, vdanen, vondruch
Target Milestone: ---Keywords: Reopened, Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-01-30 18:57:46 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 722419, 723766, 768828, 768829, 768830    
Bug Blocks: 722421, 750567    
Attachments:
Description Flags
RHEL-5.8 patch none

Comment 1 Jan Lieskovsky 2011-07-15 09:54:44 UTC
This issue affects the version of the ruby package, as shipped with Red Hat Enterprise Linux 6.

--

This issue affects the versions of the ruby package, as shipped with Fedora release of 14 and 15. Please schedule an update.

Comment 3 Jan Lieskovsky 2011-07-15 10:02:25 UTC
Created ruby tracking bugs for this issue

Affects: fedora-all [bug 722419]

Comment 9 Huzaifa S. Sidhpurwala 2011-07-20 06:06:37 UTC
It clearly seems that there are two issues here, and it should not be covered in the same CVE id.

More details and request for split at:
http://thread.gmane.org/gmane.comp.security.oss.general/5446/focus=5524

Comment 10 Vincent Danen 2011-07-20 20:18:56 UTC
The second issue has been assigned the name CVE-2011-2705, which is specific to the securerandom.rb module, which svn r32050 corrects.

Comment 12 Huzaifa S. Sidhpurwala 2011-07-21 05:10:14 UTC
Statement CVE-2011-3009:

The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw in Red Hat Enterprise Linux 4 and 5.

Comment 14 Vincent Danen 2011-08-08 15:48:39 UTC
Common Vulnerabilities and Exposures assigned an identifier CVE-2011-3009 to
the following vulnerability:

Name: CVE-2011-3009
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3009
Assigned: 20110805
Reference: http://www.openwall.com/lists/oss-security/2011/07/20/1
Reference: http://redmine.ruby-lang.org/issues/show/4338

Ruby before 1.8.6-p114 does not reset the random seed upon forking,
which makes it easier for context-dependent attackers to predict the
values of random numbers by leveraging knowledge of the number
sequence obtained in a different child process, a related issue to
CVE-2003-0900.


(I'm not sure why MITRE assigned CVE-2011-3009 to this as it sounds like this is an exact duplicate of CVE-2011-2686; I've inquired as to what makes this different from CVE-2011-2686).

Comment 16 Vincent Danen 2011-09-21 15:13:52 UTC
I've not heard anything back from MITRE about the difference, but I've looked at the CVE entry for CVE-2011-2686 and it reads:

Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.


Which has me a bit more confused.  By the sounds of the description, CVE-2011-2686 was fixed in 1.8.6, but regressed which caused the flaw in 1.8.7 (I have no idea if this is the case).

I suspect we should use CVE-2011-2686 to describe any fixes in 1.8.6 and CVE-2011-3009 to describe any fixes in 1.8.7.

Comment 17 errata-xmlrpc 2011-12-06 12:08:04 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:1581 https://rhn.redhat.com/errata/RHSA-2011-1581.html

Comment 22 Vít Ondruch 2012-01-13 15:21:32 UTC
Created attachment 555084 [details]
RHEL-5.8 patch

Comment 23 errata-xmlrpc 2012-01-30 18:33:34 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2012:0070 https://rhn.redhat.com/errata/RHSA-2012-0070.html