Bug 828878 (CVE-2012-2673)

Summary:	CVE-2012-2673 gc: malloc() and calloc() overflows
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:	Miloš Prchlík <mprchlik>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cperry, fweimer, ggainey, jkurik, jpazdziora, mmcallis, mmraka, mprchlik, msuchy, paulo.cesar.pereira.de.andrade, praiskup, rdieter, sochotni, taw, tlestach
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:	2014-03-04 06:25:04 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:	828881, 828882, 1012436, 1012437, 1022688, 1053200
Bug Blocks:	828887, 1011743

Description Jan Lieskovsky 2012-06-05 14:17:00 UTC

A security flaw was found in the way malloc() and calloc() routines implementation of gc, a Boehm-Demers-Weiser conservative garbage collector, performed parameters sanitization, when allocating memory. If an application using the gc collector was missing application-level malloc() and calloc() routines parameters validity checks, a remote attacker could provide a specially-crafted application-specific input file that, when opened in that application would lead to application crash or, potentially, arbitrary code execution with the privileges of the user running the application.

CVE request:
[1] www.openwall.com/lists/oss-security/2012/06/05/1

Upstream patches:
A) malloc() size overflow check
   [2] https://github.com/ivmai/bdwgc/commit/be9df82919960214ee4b9d3313523bff44fd99e1

B) calloc() size overflow check
   [3] https://github.com/ivmai/bdwgc/commit/e10c1eb9908c2774c16b3148b30d2f3823d66a9a
   [4] https://github.com/ivmai/bdwgc/commit/6a93f8e5bcad22137f41b6c60a1c7384baaec2b3
   [5] https://github.com/ivmai/bdwgc/commit/83231d0ab5ed60015797c3d1ad9056295ac3b2bb

References:
[6] http://kqueue.org/blog/2012/03/05/memory-allocator-security-revisited/

Comment 1 Jan Lieskovsky 2012-06-05 14:19:55 UTC

This issue affects the version of the gc package, as shipped with
Red Hat Enterprise Linux 6.

--

This issue affects the versions of the gc package, as shipped with Fedora release of 15, 16, and 17. Please schedule an update.

--

This issue affects the version of the gc package, as shipped with Fedora EPEL 5. Please schedule an update.

Comment 2 Jan Lieskovsky 2012-06-05 14:21:53 UTC

Created gc tracking bugs for this issue

Affects: fedora-all [bug 828881]
Affects: epel-5 [bug 828882]

Comment 4 Stefan Cornelius 2012-06-07 20:30:45 UTC

The CVE identifier of CVE-2012-2673 has been assigned to this issue:
http://www.openwall.com/lists/oss-security/2012/06/07/13

Comment 5 Fedora Update System 2012-06-28 03:22:22 UTC

gc-7.2b-2.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2012-06-28 03:44:17 UTC

gc-7.2b-2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 errata-xmlrpc 2013-11-04 18:20:46 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1500 https://rhn.redhat.com/errata/RHSA-2013-1500.html

Comment 16 errata-xmlrpc 2014-02-10 17:31:26 UTC

This issue has been addressed in following products:

  Red Hat Satellite Proxy v 5.6

Via RHSA-2014:0150 https://rhn.redhat.com/errata/RHSA-2014-0150.html

Comment 17 errata-xmlrpc 2014-02-10 17:32:15 UTC

This issue has been addressed in following products:

  Red Hat Satellite Server v 5.6

Via RHSA-2014:0149 https://rhn.redhat.com/errata/RHSA-2014-0149.html