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Category:   Application (Generic)  >   Adobe Acrobat/Reader Vendors:   Adobe Systems Incorporated
(Red Hat Issues Fix) Adobe Reader Incorrect Temporary File Permissions May Disclose PDF Files to Local Users
SecurityTracker Alert ID:  1014431
SecurityTracker URL:  http://securitytracker.com/id/1014431
CVE Reference:   CVE-2005-1841   (Links to External Site)
Date:  Jul 8 2005
Impact:   Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.0.9, 5.0.10
Description:   A temporary file vulnerability was reported in Adobe Reader, affecting Linux/UNIX systems. A local user may be able to view the target user's PDF documents.

In certain situations, Adobe Reader control creates temporary files in the temporary directory. The files may have elevated permissions based on the target user's umask. As a result, a local user may be able to view the temporary files to gain read-access to the target user's PDF files.

The temporary files are removed when the document is closed.

The vendor credits Secunia with reporting this vulnerability.

Impact:   A local user may be able to view the target user's PDF documents.
Solution:   Red Hat has released a fix for Red Hat Enterprise Linux Extras.

Red Hat Enterprise Linux AS version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Desktop version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Enterprise Linux ES version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Enterprise Linux WS version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5 acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Enterprise Linux AS version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30 acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm

Red Hat Desktop version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30 acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm

Red Hat Enterprise Linux ES version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30 acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm

Red Hat Enterprise Linux WS version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30 acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192 acroread-7.0.0-4.2.0.EL4.i386.rpm

Vendor URL:  www.adobe.com/support/techdocs/329121.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  3, 4

Message History:   This archive entry is a follow-up to the message listed below.
Jul 5 2005 Adobe Reader Incorrect Temporary File Permissions May Disclose PDF Files to Local Users



 Source Message Contents

Subject:  [RHSA-2005:575-01] Critical: Adobe Acrobat Reader security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Critical: Adobe Acrobat Reader security update
Advisory ID:       RHSA-2005:575-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-575.html
Issue date:        2005-07-08
Updated on:        2005-07-08
Product:           Red Hat Enterprise Linux Extras
CVE Names:         CAN-2005-1625 CAN-2005-1841
- ---------------------------------------------------------------------

1. Summary:

Updated acroread packages that fix a security issue are now available.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 Extras - i386, x86_64
Red Hat Desktop version 3 Extras - i386, x86_64
Red Hat Enterprise Linux ES version 3 Extras - i386, x86_64
Red Hat Enterprise Linux WS version 3 Extras - i386, x86_64
Red Hat Enterprise Linux AS version 4 Extras - i386, x86_64
Red Hat Desktop version 4 Extras - i386, x86_64
Red Hat Enterprise Linux ES version 4 Extras - i386, x86_64
Red Hat Enterprise Linux WS version 4 Extras - i386, x86_64

3. Problem description:

The Adobe Acrobat Reader browser allows for the viewing, distributing, and
printing of documents in portable document format (PDF).

A buffer overflow bug has been found in Adobe Acrobat Reader. It is
possible to execute arbitrary code on a victim's machine if the victim is
tricked into opening a malicious PDF file. The Common Vulnerabilities and
Exposures project has assigned the name CAN-2005-1625 to this issue.

Please note that there is no browser plugin included with the x86_64 Adobe
Acrobat Reader package; Therefore the security impact of this issue on
x86_64 is reduced from "critical" to "important".

Additionally Secunia Research discovered a bug in the way Adobe Acrobat
Reader creates temporary files. When a user opens a document, temporary
files are created which may be world readable, allowing a local user to
view sensitive information. The Common Vulnerabilities and Exposures
project has assigned the name CAN-2005-1841 to this issue.

All users of Acrobat Reader are advised to upgrade to these updated
packages, which contain Acrobat Reader version 7.0.0 and are not vulnerable
to this issue.

4. Solution:

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

160649 - CAN-2005-1841 temporary file disclosure flaw
161807 - CAN-2005-1841 temporary file disclosure flaw
162569 - CAN-2005-1625 acroread buffer overflow


6. RPMs required:

Red Hat Enterprise Linux AS version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a  acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Desktop version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a  acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Enterprise Linux ES version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a  acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Enterprise Linux WS version 3 Extras:

i386:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm
14eaca74d05e428ed6396e176230d21a  acroread-plugin-7.0.0-4.1.0.EL3.i386.rpm

x86_64:
71bfd84b4bc13528a35d0c544535caa5  acroread-7.0.0-4.1.0.EL3.i386.rpm

Red Hat Enterprise Linux AS version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30  acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm

Red Hat Desktop version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30  acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm

Red Hat Enterprise Linux ES version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30  acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm

Red Hat Enterprise Linux WS version 4 Extras:

i386:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.i386.rpm
8fdf6724f98d5d49e079c2d0cc09bf30  acroread-plugin-7.0.0-4.2.0.EL4.i386.rpm

x86_64:
1a4177e53580392be16d393578fbf192  acroread-7.0.0-4.2.0.EL4.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:

http://www.adobe.com/support/techdocs/329083.html
http://secunia.com/advisories/14457/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1625
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1841

8. Contact:

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

Copyright 2005 Red Hat, Inc.

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