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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] libpng update (SSA:2004-124-04)
Date: Mon, 3 May 2004 13:08:30 -0700 (PDT)
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[slackware-security]  libpng update (SSA:2004-124-04)

New libpng packages are available for Slackware 9.0, 9.1, and -current to
fix an issue where libpng could be caused to crash, perhaps creating a denial
of service issue if network services are linked with it.

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

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0421

Here are the details from the Slackware 9.1 ChangeLog:
+--------------------------+
Sun May  2 17:16:41 PDT 2004
patches/packages/libpng-1.2.5-i486-2.tgz:  Patched a problem where
  libpng may access memory that is out of bounds when creating an error
  message, possibly crashing libpng and creating a denial of service.
  For more details, see:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0421
  (* Security fix *)
+--------------------------+


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

Updated package for Slackware 9.0:
ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patches/packages/libpng-1.2.5-i386-2.tgz

Updated package for Slackware 9.1:
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/libpng-1.2.5-i486-2.tgz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libpng-1.2.5-i486-2.tgz


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

Slackware 9.0 package:
6c68e6a65850e26b60651d65fd8c0a2f  libpng-1.2.5-i386-2.tgz

Slackware 9.1 package:
781c7e61997c34c5c70855be40012bb9  libpng-1.2.5-i486-2.tgz

Slackware -current package:
476b916ded315a2eba0af3c6637d770b  libpng-1.2.5-i486-2.tgz


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

Upgrade the package as root:
# upgradepkg libpng-1.2.5-i486-2.tgz


+-----+

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

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