Executive Summary

Summary
Title libcgroup security update
Informations
Name RHSA-2011:0320 First vendor Publication 2011-03-03
Vendor RedHat Last vendor Modification 2011-03-03
Severity (Vendor) Important Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated libcgroup packages that fix two security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

The libcgroup packages provide tools and libraries to control and monitor control groups.

A heap-based buffer overflow flaw was found in the way libcgroup converted a list of user-provided controllers for a particular task into an array of strings. A local attacker could use this flaw to escalate their privileges via a specially-crafted list of controllers. (CVE-2011-1006)

It was discovered that libcgroup did not properly check the origin of Netlink messages. A local attacker could use this flaw to send crafted Netlink messages to the cgrulesengd daemon, causing it to put processes into one or more existing control groups, based on the attacker's choosing, possibly allowing the particular tasks to run with more resources (memory, CPU, etc.) than originally intended. (CVE-2011-1022)

Red Hat would like to thank Nelson Elhage for reporting the CVE-2011-1006 issue.

All libcgroup users should upgrade to these updated packages, which contain backported patches to correct these issues.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

678107 - CVE-2011-1006 libcgroup: Heap-based buffer overflow by converting list of controllers for given task into an array of strings 680409 - CVE-2011-1022 libcgroup: Uncheck origin of NETLINK messages

Original Source

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

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-264 Permissions, Privileges, and Access Controls
50 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12695
 
Oval ID: oval:org.mitre.oval:def:12695
Title: DSA-2193-1 libcgroup -- several
Description: Several issues have been discovered in libcgroup, a library to control and monitor control groups: CVE-2011-1006 Heap-based buffer overflow by converting list of controllers for given task into an array of strings could lead to privilege escalation by a local attacker. CVE-2011-1022 libcgroup did not properly check the origin of Netlink messages, allowing a local attacker to send crafted Netlink messages which could lead to privilege escalation. The oldstable distribution does not contain libgroup packages.
Family: unix Class: patch
Reference(s): DSA-2193-1
CVE-2011-1006
CVE-2011-1022
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): libcgroup
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21523
 
Oval ID: oval:org.mitre.oval:def:21523
Title: RHSA-2011:0320: libcgroup security update (Important)
Description: The cgre_receive_netlink_msg function in daemon/cgrulesengd.c in cgrulesengd in the Control Group Configuration Library (aka libcgroup or libcg) before 0.37.1 does not verify that netlink messages originated in the kernel, which allows local users to bypass intended resource restrictions via a crafted message.
Family: unix Class: patch
Reference(s): RHSA-2011:0320-01
CVE-2011-1006
CVE-2011-1022
Version: 29
Platform(s): Red Hat Enterprise Linux 6
Product(s): libcgroup
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23544
 
Oval ID: oval:org.mitre.oval:def:23544
Title: ELSA-2011:0320: libcgroup security update (Important)
Description: The cgre_receive_netlink_msg function in daemon/cgrulesengd.c in cgrulesengd in the Control Group Configuration Library (aka libcgroup or libcg) before 0.37.1 does not verify that netlink messages originated in the kernel, which allows local users to bypass intended resource restrictions via a crafted message.
Family: unix Class: patch
Reference(s): ELSA-2011:0320-01
CVE-2011-1006
CVE-2011-1022
Version: 13
Platform(s): Oracle Linux 6
Product(s): libcgroup
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28066
 
Oval ID: oval:org.mitre.oval:def:28066
Title: DEPRECATED: ELSA-2011-0320 -- libcgroup security update (important)
Description: [0.36-6.1] - Fixed buffer overflow when parsing cgexec command line parameters. - Added checking of source of netlink messages to cgrulesengd daemon. - Resolves: CVE-2011-1006 CVE-2011-1022
Family: unix Class: patch
Reference(s): ELSA-2011-0320
CVE-2011-1006
CVE-2011-1022
Version: 4
Platform(s): Oracle Linux 6
Product(s): libcgroup
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 16

OpenVAS Exploits

Date Description
2012-07-09 Name : RedHat Update for libcgroup RHSA-2011:0320-01
File : nvt/gb_RHSA-2011_0320-01_libcgroup.nasl
2011-06-03 Name : Fedora Update for libcgroup FEDORA-2011-2570
File : nvt/gb_fedora_2011_2570_libcgroup_fc13.nasl
2011-05-12 Name : Debian Security Advisory DSA 2193-1 (libcgroup)
File : nvt/deb_2193_1.nasl
2011-04-01 Name : Fedora Update for libcgroup FEDORA-2011-2631
File : nvt/gb_fedora_2011_2631_libcgroup_fc14.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
72519 Control Group Configuration Library (libcgroup / libcg) tools/tools-common.c ...

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_libcgroup-devel-110304.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_libcgroup-devel-110314.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-0320.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110303_libcgroup_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-05-27 Name : The remote Fedora host is missing a security update.
File : fedora_2011-2570.nasl - Type : ACT_GATHER_INFO
2011-05-05 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_libcgroup-devel-110304.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote SuSE 11 host is missing a security update.
File : suse_11_libcgroup-devel-110303.nasl - Type : ACT_GATHER_INFO
2011-03-27 Name : The remote Fedora host is missing a security update.
File : fedora_2011-2631.nasl - Type : ACT_GATHER_INFO
2011-03-27 Name : The remote Fedora host is missing a security update.
File : fedora_2011-2638.nasl - Type : ACT_GATHER_INFO
2011-03-17 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2193.nasl - Type : ACT_GATHER_INFO
2011-03-04 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-0320.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:54:26
  • Multiple Updates