Executive Summary

Summary
Title libcap security and bug fix update
Informations
Name RHSA-2011:1694 First vendor Publication 2011-12-06
Vendor RedHat Last vendor Modification 2011-12-06
Severity (Vendor) Low Revision 03

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:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated libcap packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link 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 Workstation (v. 6) - i386, x86_64

3. Description:

The libcap packages provide a library and tools for getting and setting POSIX capabilities.

It was found that capsh did not change into the new root when using the "--chroot" option. An application started via the "capsh --chroot" command could use this flaw to escape the chroot restrictions. (CVE-2011-4099)

This update also fixes the following bug:

* Previously, the libcap packages did not contain the capsh(1) manual page. With this update, the capsh(1) manual page is included. (BZ#730957)

All libcap users are advised to 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/):

722694 - CVE-2011-4099 capsh: does not chdir after chroot 730957 - Add missing capsh man page in libcap

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2011-1694.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:27172
 
Oval ID: oval:org.mitre.oval:def:27172
Title: RHSA-2011:1694 -- libcap security and bug fix update (Low)
Description: The libcap packages provide a library and tools for getting and setting POSIX capabilities. It was found that capsh did not change into the new root when using the "--chroot" option. An application started via the "capsh --chroot" command could use this flaw to escape the chroot restrictions. (CVE-2011-4099) This update also fixes the following bug: * Previously, the libcap packages did not contain the capsh(1) manual page. With this update, the capsh(1) manual page is included. (BZ#730957) All libcap users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
Family: unix Class: patch
Reference(s): RHSA-2011:1694
CVE-2011-4099
Version: 3
Platform(s): Red Hat Enterprise Linux 6
Product(s): libcap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27782
 
Oval ID: oval:org.mitre.oval:def:27782
Title: ELSA-2011-1694 -- libcap security and bug fix update (low)
Description: [2.16-5.5] - remove some obsolete parameters from capsh manpage [2.16-5.4] - add capsh manpage (#730957) [2.16-5.3] - make sure to chdir ('/') after calling chroot http://cwe.mitre.org/data/definitions/243.html
Family: unix Class: patch
Reference(s): ELSA-2011-1694
CVE-2011-4099
Version: 3
Platform(s): Oracle Linux 6
Product(s): libcap
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 21

OpenVAS Exploits

Date Description
2012-07-09 Name : RedHat Update for libcap RHSA-2011:1694-03
File : nvt/gb_RHSA-2011_1694-03_libcap.nasl
2011-12-16 Name : Mandriva Update for libcap MDVSA-2011:185 (libcap)
File : nvt/gb_mandriva_MDVSA_2011_185.nasl

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_libcap-111104.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_libcap-111104.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20111206_libcap_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-185.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_libcap-111105.nasl - Type : ACT_GATHER_INFO
2011-12-06 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1694.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2014-02-17 11:55:23
  • Multiple Updates
2014-02-10 21:28:08
  • Multiple Updates
2014-02-08 13:22:38
  • Multiple Updates