Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2011.1204
Low: libcap security and bug fix update
7 December 2011
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libcap
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Linux variants
Impact/Access: Increased Privileges -- Existing Account
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2011-4099
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2011-1694.html
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Low: libcap security and bug fix update
Advisory ID: RHSA-2011:1694-03
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1694.html
Issue date: 2011-12-06
CVE Names: CVE-2011-4099
=====================================================================
1. Summary:
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
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libcap-2.16-5.5.el6.src.rpm
i386:
libcap-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
x86_64:
libcap-2.16-5.5.el6.i686.rpm
libcap-2.16-5.5.el6.x86_64.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libcap-2.16-5.5.el6.src.rpm
i386:
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
x86_64:
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.x86_64.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libcap-2.16-5.5.el6.src.rpm
x86_64:
libcap-2.16-5.5.el6.i686.rpm
libcap-2.16-5.5.el6.x86_64.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libcap-2.16-5.5.el6.src.rpm
x86_64:
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.x86_64.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libcap-2.16-5.5.el6.src.rpm
i386:
libcap-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
ppc64:
libcap-2.16-5.5.el6.ppc.rpm
libcap-2.16-5.5.el6.ppc64.rpm
libcap-debuginfo-2.16-5.5.el6.ppc.rpm
libcap-debuginfo-2.16-5.5.el6.ppc64.rpm
libcap-devel-2.16-5.5.el6.ppc.rpm
libcap-devel-2.16-5.5.el6.ppc64.rpm
s390x:
libcap-2.16-5.5.el6.s390.rpm
libcap-2.16-5.5.el6.s390x.rpm
libcap-debuginfo-2.16-5.5.el6.s390.rpm
libcap-debuginfo-2.16-5.5.el6.s390x.rpm
libcap-devel-2.16-5.5.el6.s390.rpm
libcap-devel-2.16-5.5.el6.s390x.rpm
x86_64:
libcap-2.16-5.5.el6.i686.rpm
libcap-2.16-5.5.el6.x86_64.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.x86_64.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libcap-2.16-5.5.el6.src.rpm
i386:
libcap-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
x86_64:
libcap-2.16-5.5.el6.i686.rpm
libcap-2.16-5.5.el6.x86_64.rpm
libcap-debuginfo-2.16-5.5.el6.i686.rpm
libcap-debuginfo-2.16-5.5.el6.x86_64.rpm
libcap-devel-2.16-5.5.el6.i686.rpm
libcap-devel-2.16-5.5.el6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2011-4099.html
https://access.redhat.com/security/updates/classification/#low
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2011 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)
iD8DBQFO3jgFXlSAg2UNWIIRAk9BAJ9DzrgZyzZAWtaYaFfvxy6RZXJ6OwCeINmv
HGMNVoCTPUC04zkToIVq6y4=
=X8w3
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=yJjW
-----END PGP SIGNATURE-----