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 | ||||||
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| Product: | [Other] Security Response | Reporter: | Jan Lieskovsky <jlieskov> | ||||
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> | ||||
| Status: | CLOSED ERRATA | QA Contact: | |||||
| Severity: | low | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | unspecified | CC: | 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: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | 722419, 723766, 768828, 768829, 768830 | ||||||
| Bug Blocks: | 722421, 750567 | ||||||
| Attachments: |
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Description
Jan Lieskovsky
2011-07-15 09:51:59 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. Created ruby tracking bugs for this issue Affects: fedora-all [bug 722419] 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 The second issue has been assigned the name CVE-2011-2705, which is specific to the securerandom.rb module, which svn r32050 corrects. 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. 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). 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. 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 Created attachment 555084 [details]
RHEL-5.8 patch
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 |