Articles / Red Hat: An updated gzip pa…

Red Hat: An updated gzip package fixes one security issue

The gzip package provides the GNU gzip data compression program. An integer underflow flaw, leading to an array index error, was found in the way gzip expanded archive files compressed with the Lempel-Ziv-Welch (LZW) compression algorithm. If a victim expanded a specially-crafted archive, it could cause gzip to crash or, potentially, execute arbitrary code with the privileges of the user running gzip. This flaw only affects 64-bit systems. Updated packages are available from updates.redhat.com.

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=====================================================================
                  Red Hat Security Advisory

Synopsis:          Critical: acroread security update
Advisory ID:       RHSA-2010:0060-01
Product:           Red Hat Enterprise Linux Extras
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0060.html
Issue date:        2010-01-20
CVE Names:         CVE-2009-3953 CVE-2009-3954 CVE-2009-3955 
                  CVE-2009-3956 CVE-2009-3959 CVE-2009-4324 
=====================================================================

1. Summary:

The acroread packages as shipped in Red Hat Enterprise Linux 3 Extras
contain security flaws and should not be used.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Desktop version 3 Extras - i386
Red Hat Enterprise Linux AS version 3 Extras - i386
Red Hat Enterprise Linux ES version 3 Extras - i386
Red Hat Enterprise Linux WS version 3 Extras - i386

3. Description:

Adobe Reader allows users to view and print documents in Portable Document
Format (PDF).

Adobe Reader 8.1.7 is vulnerable to critical security flaws and should no
longer be used. A specially-crafted PDF file could cause Adobe Reader to
crash or, potentially, execute arbitrary code as the user running Adobe
Reader when opened. (CVE-2009-4324, CVE-2009-3953, CVE-2009-3954,
CVE-2009-3955, CVE-2009-3959, CVE-2009-3956)

Adobe have discontinued support for Adobe Reader 8 for Linux. Adobe Reader
9 for Linux is not compatible with Red Hat Enterprise Linux 3. An
alternative PDF file viewer available in Red Hat Enterprise Linux 3 is
xpdf.

This update removes the acroread packages due to their known security
vulnerabilities.

4. Solution:

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

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

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

547799 - CVE-2009-4324 acroread: media.newplayer JavaScript API code execution vulnerability (APSB10-02)
554293 - CVE-2009-3953 CVE-2009-3954 CVE-2009-3955 CVE-2009-3959 acroread: multiple code execution flaws (APSB10-02)
554296 - CVE-2009-3956 acroread: script injection vulnerability (APSB10-02)

6. Package List:

Red Hat Enterprise Linux AS version 3 Extras:

i386:
acroread-uninstall-9.3-3.i386.rpm

Red Hat Desktop version 3 Extras:

i386:
acroread-uninstall-9.3-3.i386.rpm

Red Hat Enterprise Linux ES version 3 Extras:

i386:
acroread-uninstall-9.3-3.i386.rpm

Red Hat Enterprise Linux WS version 3 Extras:

i386:
acroread-uninstall-9.3-3.i386.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://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2009-3953.html
https://www.redhat.com/security/data/cve/CVE-2009-3954.html
https://www.redhat.com/security/data/cve/CVE-2009-3955.html
https://www.redhat.com/security/data/cve/CVE-2009-3956.html
https://www.redhat.com/security/data/cve/CVE-2009-3959.html
https://www.redhat.com/security/data/cve/CVE-2009-4324.html
http://www.redhat.com/security/updates/classification/#critical
http://www.adobe.com/support/security/bulletins/apsb10-02.html

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2010 Red Hat, Inc.
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