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Slackware: libpng Buffer overflow vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Slackware Exploitation could cause program crashes, or possibly allow arbitrary code embedded in a malicious PNG image to execute.

[slackware-security]  libpng (SSA:2004-222-01)

New libpng packages are available for Slackware 8.1, 9.0, 9.1, 10.0,
and -current to fix security issues.  These issues could cause program crashes,
or possibly allow arbitrary code embedded in a malicious PNG image to execute.
The PNG library is widely used within the system, so all sites should upgrade
to the new libpng package.

More details about these issues may be found in the Common
Vulnerabilities and Exposures (CVE) database:

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0597
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0598
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0599

Here are the details from the Slackware 10.0 ChangeLog:
+--------------------------+
Sat Aug  7 17:17:20 PDT 2004
patches/packages/libpng-1.2.5-i486-3.tgz:  Patched possible security
  issues including buffer and integer overflows and null pointer
  references.  These issues could cause program crashes, or possibly
  allow arbitrary code embedded in a malicious PNG image to execute.
  The PNG library is widely used within the system, so all sites
  should upgrade to the new libpng package.
  For more details, see:
     http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0597
     http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0598
     http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0599
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Updated package for Slackware 8.1: 
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/libpng-1.2.5-i386-1.tgz

Updated package for Slackware 9.0: 
ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patches/packages/libpng-1.2.5-i486-3.tgz

Updated package for Slackware 9.1: 
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/libpng-1.2.5-i486-3.tgz

Updated package for Slackware 10.0: 
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/libpng-1.2.5-i486-3.tgz

Updated package for Slackware -current: 
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libpng-1.2.5-i486-3.tgz


MD5 signatures:
+-------------+

Slackware 8.1 package:
be08f3ea7e8b41a3fd7ce49a676617e0  libpng-1.2.5-i386-1.tgz

Slackware 9.0 package:
6a7ab390a92dbd28f77a5780be2b5ac1  libpng-1.2.5-i486-3.tgz

Slackware 9.1 package:
4fcf53708102839f3cac78a99d05e750  libpng-1.2.5-i486-3.tgz

Slackware 10.0 package:
094a9825c51204a9aa2cb0bbb43b7a64  libpng-1.2.5-i486-3.tgz

Slackware -current package:
094a9825c51204a9aa2cb0bbb43b7a64  libpng-1.2.5-i486-3.tgz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg libpng-1.2.5-i486-3.tgz


+-----+

Slackware Linux Security Team 
http://slackware.com/gpg-key
security@slackware.com

 
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