Red Hat Linux 9: RHSA-2004:181-01 Critical: libpng Denial Of Service

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.

If up2date fails to connect to Red Hat Network due to SSL Certificate Errors, you need to install a version of the up2date client with an updated certificate. The latest version of up2date is available from the Red Hat FTP site and may also be downloaded directly from the RHN website:

https://access.redhat.com

5. RPMs required:

Red Hat Linux 9:

SRPMS:

i386:

6. Verification:

MD5 sum Package Name

e45674dfbfc641bae05438da90bc5cb8 9/en/os/SRPMS/libpng-1.2.2-20.src.rpm 591b1c8a152e1dcac63b82640ffa14e0 9/en/os/SRPMS/libpng10-1.0.13-11.src.rpm 3f1c2ee426702c64e73ee453afb6216f 9/en/os/i386/libpng-1.2.2-20.i386.rpm a08847d084032f99a1b33d3b5a9fba33 9/en/os/i386/libpng-devel-1.2.2-20.i386.rpm 800356c0126f967b9353279ebc8c321c 9/en/os/i386/libpng10-1.0.13-11.i386.rpm 505508162b208c95b5bd3e63e9cafbfd 9/en/os/i386/libpng10-devel-1.0.13-11.i386.rpm

These packages are GPG signed by Red Hat for security. Our key is available from

You can verify each package with the following command:

rpm --checksig -v

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

md5sum