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-   -   Low: libcap security and bug fix update (http://www.linux-archive.org/enterprise-watch-list/607175-low-libcap-security-bug-fix-update.html)

12-06-2011 02:43 PM

Low: libcap security and bug fix update
 
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================================================== ===================
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.
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