Bug 547906 (CVE-2009-4141)

Summary:	CVE-2009-4141 kernel: create_elf_tables can leave urandom in a bad state
Product:	[Other] Security Response	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	arozansk, bhu, cebbert, davej, dfeng, dhoward, dhowells, dwu, hjia, jeder, jpirko, jskrabal, kmcmartin, kzhang, lgoncalv, lwang, rcvalle, security-response-team, tao, williams
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:	2010-12-21 22:08:43 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:	548656, 548657, 548658, 549246, 557320
Bug Blocks:

Description Eugene Teo (Security Response) 2009-12-15 23:48:09 UTC

Reported by Tavis Ormandy of Google Security Team. The root cause was determined to be a use-after-free of locked async file descriptors, and it is believed to have been introduced here: http://git.kernel.org/linus/233e70f4228e78eb2f80dc6650f65d3ae3dbf17c

Acknowledgements:

Red Hat would like to thank Tavis Ormandy of Google Security Team for reporting this issue.

Comment 10 Eugene Teo (Security Response) 2010-01-14 07:51:26 UTC

Upstream commit:
http://git.kernel.org/linus/53281b6d3

Comment 11 Eugene Teo (Security Response) 2010-01-14 08:07:24 UTC

This only affected Red Hat Enterprise Linux 5.

Comment 13 errata-xmlrpc 2010-01-19 23:36:58 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0046 https://rhn.redhat.com/errata/RHSA-2010-0046.html

Comment 15 Aristeu Rozanski 2010-01-26 13:44:51 UTC

Patch present on the latest RHEL6 git tree.

Comment 16 Chuck Ebbert 2010-01-29 13:15:19 UTC

Fixed in 2.6.31.12 and 2.6.32.4 by:

 fasync-split-fasync_helper-into-separate-add-remove-functions.patch

Comment 17 Fedora Update System 2010-02-03 17:13:36 UTC

kernel-2.6.30.10-105.2.13.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/kernel-2.6.30.10-105.2.13.fc11

Comment 18 Fedora Update System 2010-02-05 01:48:29 UTC

kernel-2.6.30.10-105.2.13.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 19 errata-xmlrpc 2010-03-17 04:02:56 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5.3.Z - Server Only

Via RHSA-2010:0149 https://rhn.redhat.com/errata/RHSA-2010-0149.html

Comment 20 errata-xmlrpc 2010-03-23 15:42:28 UTC

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0161 https://rhn.redhat.com/errata/RHSA-2010-0161.html