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RedHat: UPDATE: Postscript and PDF vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
RedHat Linux Updated packages for gv and ggv fix a local buffer overflow when reading malformed PDF or PostScript(R) files.

---------------------------------------------------------------------
                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated packages fix PostScript and PDF security issue
Advisory ID:       RHSA-2002:207-14
Issue date:        2002-09-23
Updated on:        2002-10-09
Product:           Red Hat Linux
Keywords:          pdf adobe postscript exploit
Cross references:  
Obsoletes:         
CVE Names:         CAN-2002-0838
---------------------------------------------------------------------

1. Topic:

Updated packages for gv and ggv fix a local buffer overflow
when reading malformed PDF or PostScript(R) files.

2. Relevant releases/architectures:

Red Hat Linux 6.2 - alpha, i386, sparc
Red Hat Linux 7.0 - alpha, i386
Red Hat Linux 7.1 - alpha, i386, ia64
Red Hat Linux 7.2 - i386, ia64
Red Hat Linux 7.3 - i386
Red Hat Linux 8.0 - i386

3. Problem description:

Both gv and ggv are applications which use the Ghostscript PostScript
interpreter to display PostScript and PDF documents under the X Window
System.

Zen Parse found a local buffer overflow in gv version 3.5.8 and earlier.
 
Under this vulnerability, an attacker can create a carefully crafted,
malformed PDF or PostScript file that, when viewed using gv, executes
arbitrary commands on the system.

Because ggv contains code derived from gv, it has the same vulnerability.
All users of gv and ggv are advised to upgrade to these errata packages to
correct this vulnerability.

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. RPMs required:

Red Hat Linux 6.2:

SRPMS: 
ftp://updates.Red Hat.com/6.2/en/os/SRPMS/gv-3.5.8-18.6x.src.rpm

alpha: 
ftp://updates.Red Hat.com/6.2/en/os/alpha/gv-3.5.8-18.6x.alpha.rpm

i386: 
ftp://updates.Red Hat.com/6.2/en/os/i386/gv-3.5.8-18.6x.i386.rpm

sparc: 
ftp://updates.Red Hat.com/6.2/en/os/sparc/gv-3.5.8-18.6x.sparc.rpm


Red Hat Linux 7.0:

SRPMS: 
ftp://updates.Red Hat.com/7.0/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm

alpha: 
ftp://updates.Red Hat.com/7.0/en/os/alpha/gv-3.5.8-18.7x.alpha.rpm

i386: 
ftp://updates.Red Hat.com/7.0/en/os/i386/gv-3.5.8-18.7x.i386.rpm

Red Hat Linux 7.1:

SRPMS: 
ftp://updates.Red Hat.com/7.1/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm

alpha: 
ftp://updates.Red Hat.com/7.1/en/os/alpha/gv-3.5.8-18.7x.alpha.rpm

i386: 
ftp://updates.Red Hat.com/7.1/en/os/i386/gv-3.5.8-18.7x.i386.rpm

ia64: 
ftp://updates.Red Hat.com/7.1/en/os/ia64/gv-3.5.8-18.7x.ia64.rpm

Red Hat Linux 7.2:

SRPMS: 
ftp://updates.Red Hat.com/7.2/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm 
ftp://updates.Red Hat.com/7.2/en/os/SRPMS/ggv-1.0.2-5.1.src.rpm

i386: 
ftp://updates.Red Hat.com/7.2/en/os/i386/gv-3.5.8-18.7x.i386.rpm 
ftp://updates.Red Hat.com/7.2/en/os/i386/ggv-1.0.2-5.1.i386.rpm

ia64: 
ftp://updates.Red Hat.com/7.2/en/os/ia64/gv-3.5.8-18.7x.ia64.rpm 
ftp://updates.Red Hat.com/7.2/en/os/ia64/ggv-1.0.2-5.1.ia64.rpm

Red Hat Linux 7.3:

SRPMS: 
ftp://updates.Red Hat.com/7.3/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm 
ftp://updates.Red Hat.com/7.3/en/os/SRPMS/ggv-1.0.2-5.1.src.rpm

i386: 
ftp://updates.Red Hat.com/7.3/en/os/i386/gv-3.5.8-18.7x.i386.rpm 
ftp://updates.Red Hat.com/7.3/en/os/i386/ggv-1.0.2-5.1.i386.rpm

Red Hat Linux 8.0:

SRPMS: 
ftp://updates.Red Hat.com/8.0/en/os/SRPMS/gv-3.5.8-19.src.rpm 
ftp://updates.Red Hat.com/8.0/en/os/SRPMS/ggv-1.99.9-5.src.rpm

i386: 
ftp://updates.Red Hat.com/8.0/en/os/i386/gv-3.5.8-19.i386.rpm 
ftp://updates.Red Hat.com/8.0/en/os/i386/ggv-1.99.9-5.i386.rpm



6. Verification:

MD5 sum                          Package Name
--------------------------------------------------------------------------
c958e36afd8757c7ed75233aa8ddaa34 6.2/en/os/SRPMS/gv-3.5.8-18.6x.src.rpm
45fc399741b3c0eb0e0ce3dc1c52a84a 6.2/en/os/alpha/gv-3.5.8-18.6x.alpha.rpm
857ecca4476a96e39ad561c26cef2726 6.2/en/os/i386/gv-3.5.8-18.6x.i386.rpm
ec28989b48f208d2489b50f5c9299194 6.2/en/os/sparc/gv-3.5.8-18.6x.sparc.rpm
ee713ee9ebe151cc25bc6c42e40693f0 7.0/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm
5f4a625573b5be0fe797d3cbe4acd1fa 7.0/en/os/alpha/gv-3.5.8-18.7x.alpha.rpm
7eed28fedf699c497e2be384589155ee 7.0/en/os/i386/gv-3.5.8-18.7x.i386.rpm
ee713ee9ebe151cc25bc6c42e40693f0 7.1/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm
5f4a625573b5be0fe797d3cbe4acd1fa 7.1/en/os/alpha/gv-3.5.8-18.7x.alpha.rpm
7eed28fedf699c497e2be384589155ee 7.1/en/os/i386/gv-3.5.8-18.7x.i386.rpm
bd84b91ebe4706abd6e9a5253f8500f4 7.1/en/os/ia64/gv-3.5.8-18.7x.ia64.rpm
c0915e40e1d512174f9c2f024399e866 7.2/en/os/SRPMS/ggv-1.0.2-5.1.src.rpm
ee713ee9ebe151cc25bc6c42e40693f0 7.2/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm
afd4eab8f18ca4f03ead7c4025f99ab1 7.2/en/os/i386/ggv-1.0.2-5.1.i386.rpm
7eed28fedf699c497e2be384589155ee 7.2/en/os/i386/gv-3.5.8-18.7x.i386.rpm
705d7d3df199b860528743cd76c74e32 7.2/en/os/ia64/ggv-1.0.2-5.1.ia64.rpm
bd84b91ebe4706abd6e9a5253f8500f4 7.2/en/os/ia64/gv-3.5.8-18.7x.ia64.rpm
c0915e40e1d512174f9c2f024399e866 7.3/en/os/SRPMS/ggv-1.0.2-5.1.src.rpm
ee713ee9ebe151cc25bc6c42e40693f0 7.3/en/os/SRPMS/gv-3.5.8-18.7x.src.rpm
afd4eab8f18ca4f03ead7c4025f99ab1 7.3/en/os/i386/ggv-1.0.2-5.1.i386.rpm
7eed28fedf699c497e2be384589155ee 7.3/en/os/i386/gv-3.5.8-18.7x.i386.rpm
5728a94f70acaf4323063d488feb4cdf 8.0/en/os/SRPMS/ggv-1.99.9-5.src.rpm
bcb02b0e752a3e7a816cfb5d845d2bd2 8.0/en/os/SRPMS/gv-3.5.8-19.src.rpm
820d56f49dc4723d6643daf64a1f8ee5 8.0/en/os/i386/ggv-1.99.9-5.i386.rpm
81e530d5f8eab79247fb72537b3d8a97 8.0/en/os/i386/gv-3.5.8-19.i386.rpm


These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
     http://www.Red Hat.com/about/contact/pgpkey.html

You can verify each package with the following command:
    rpm --checksig  

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg 


7. References:
 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0838


Copyright(c) 2000, 2001, 2002 Red Hat, Inc.


 
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