Bug 678107 – CVE-2011-1006 libcgroup: Heap-based buffer overflow by converting list of controllers for given task into an array of strings

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Bug 678107 - (CVE-2011-1006) CVE-2011-1006 libcgroup: Heap-based buffer overflow by converting list of controllers for given task into an array of strings

Summary:	CVE-2011-1006 libcgroup: Heap-based buffer overflow by converting list of con...

Status:	CLOSED ERRATA

Aliases:	CVE-2011-1006

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	public=20110303,reported=20110216,sou...
Keywords:	Security

Depends On:	680438 680439
Blocks:
	Show dependency tree / graph

Reported:	2011-02-16 13:34 EST by Jan Lieskovsky
Modified:	2015-07-31 08:35 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-07-29 09:52:28 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
patch (410 bytes, patch) 2011-02-17 06:07 EST, Jan Safranek	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0320	normal	SHIPPED_LIVE	Important: libcgroup security update	2011-03-03 18:17:09 EST

Groups: None (edit)

Description Jan Lieskovsky 2011-02-16 13:34:44 EST

A heap-based buffer overflow flaw was found in the way libcgroup,
control groups controlling and monitoring infrastructure, converted
list of user provided controllers for particular task, dedicated to
run the task in given control groups, into an array of strings.
A local attacker could use this flaw to escalate their privileges
via a specially-crafted list of controllers.

Acknowledgements:

Red Hat would like to thank Nelson Elhage for reporting this issue.

Comment 1 Jan Lieskovsky 2011-02-16 13:36:54 EST

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

--

This issue affects the versions of the libcgroup package, as shipped
with Fedora release of 13 and 14.

Comment 4 Jan Safranek 2011-02-17 06:07:25 EST

Created attachment 479302 [details]
patch

The patch is obviously very simple, just check if nr. of controllers is in valid range.

Comment 7 Jan Lieskovsky 2011-02-22 11:03:05 EST

The CVE identifier of CVE-2011-1006 has been assigned to this issue.

Comment 12 Jan Lieskovsky 2011-03-03 04:47:49 EST

Upstream patch:
http://libcg.git.sourceforge.net/git/gitweb.cgi?p=libcg/libcg;a=commitdiff;h=5ae8aea1ecd60c439121d3329d8eaabf13d292c1

Comment 13 errata-xmlrpc 2011-03-03 18:17:18 EST

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0320 https://rhn.redhat.com/errata/RHSA-2011-0320.html

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