Red Hat Linux Advisories: up2date, Xft

Red Hat Security Advisory

1. Topic:

Updated up2date packages for Red Hat Linux 8.0 and 9 fix RPM GPG
signature verification.

2. Relevant releases/architectures:

Red Hat Linux 8.0 – i386
Red Hat Linux 9 – i386

3. Problem description:

The Red Hat Update Agent, up2date, automatically queries the Red
Hat Network servers and determines which packages need to be
updated on your machine.

up2date versions 3.0.7 and 3.1.23 incorrectly check RPM GPG
signatures. These are the versions found in Red Hat Linux 8.0 and
9.

This bug allows packages which have no GPG signature to be
installed by up2date if they are provided by the Red Hat Network
servers. The intended behaviour is that only packages signed with
the Red Hat package signing key will be installed.

For an attacker to make use of this flaw, they would have to
make unsigned packages appear on the Red Hat Network. Connections
to the Red Hat Network servers are authenticated and verified by
the use of SSL, so it is not possible to intercept the connection
to Red Hat Network servers and give unsigned packages. To make use
of this flaw, an attacker would have to compromise the Red Hat
Network servers at Red Hat.

Because of these factors, the risk of exploiting this bug is
low. However, we advise that all users of up2date update to these
erratum packages.

Note that all other variations of package signature checks work
correctly.

The fix was to change the code so that packages with no GPG
signature are rejected in the same way as those with bad GPG
signatures (the up2date client refuses to install them).

Red Hat would like to thank Barry Nathan for finding and
reporting this error.

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 8.0:

SRPMS:

ftp://updates.redhat.com/8.0/en/os/SRPMS/up2date-3.0.7.1-2.src.rpm

i386:

ftp://updates.redhat.com/8.0/en/os/i386/up2date-3.0.7.1-2.i386.rpm

ftp://updates.redhat.com/8.0/en/os/i386/up2date-gnome-3.0.7.1-2.i386.rpm

Red Hat Linux 9:

SRPMS:

ftp://updates.redhat.com/9/en/os/SRPMS/up2date-3.1.23.1-5.src.rpm

i386:

ftp://updates.redhat.com/9/en/os/i386/up2date-3.1.23.1-5.i386.rpm

ftp://updates.redhat.com/9/en/os/i386/up2date-gnome-3.1.23.1-5.i386.rpm

6. Verification:

MD5 sum Package Name

606193c00a7fb419b4952b68f1245082
8.0/en/os/SRPMS/up2date-3.0.7.1-2.src.rpm
be91944cf454244846a96b94a3efaa74
8.0/en/os/i386/up2date-3.0.7.1-2.i386.rpm
0adeb9cf7fff1754d183894fa40111bc
8.0/en/os/i386/up2date-gnome-3.0.7.1-2.i386.rpm
99d3b05223b596cf8d949c27b48e2ebd
9/en/os/SRPMS/up2date-3.1.23.1-5.src.rpm
c6e89c3f118b5734a34d7275d8156596
9/en/os/i386/up2date-3.1.23.1-5.i386.rpm
bf0b79cfeaaa6ed947609a27da5c2d65
9/en/os/i386/up2date-gnome-3.1.23.1-5.i386.rpm

These packages are GPG signed by Red Hat for security. Our key
is available from http://www.redhat.com/security/keys.html

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

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0546

8. Contact:

The Red Hat security contact is <<A
HREF=”mailto:[email protected]”>[email protected]>. More
contact details at http://www.redhat.com/solutions/security/news/contact.html

Copyright 2003 Red Hat, Inc.

Red Hat Bug Fix Advisory

1. Topic:

A memory leak was discovered in the Xft library on non-RENDER X
servers. This errata fixes the issue.

2. Relevant releases/architectures:

Red Hat Linux 8.0 – i386

3. Problem description:

The Xft memory leak manifests itself when any GTK+ 2.0, Qt 3.0,
or other Xft-based application renders text on an X server that
lacks the RENDER extension. This includes the VNC X server and the
default XFree86 X server for some video chipsets, as well as many X
servers shipped with past versions of Red Hat Linux or with other
operating systems.

The bug occurs most commonly with terminal applications as their
extensive text handling resulted in rapid memory leaks. However
most applications are impacted by the bug.

It is recommended that all users install this update.

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/bugzilla
for more info):

76219 – gnome-terminal memory leak

6. RPMs required:

Red Hat Linux 8.0:

SRPMS:
ftp://updates.redhat.com/8.0/en/os/SRPMS/Xft-2.0-4.src.rpm

i386:
ftp://updates.redhat.com/8.0/en/os/i386/Xft-2.0-4.i386.rpm

ftp://updates.redhat.com/8.0/en/os/i386/Xft-devel-2.0-4.i386.rpm

7. Verification:

MD5 sum Package Name

ebdaa5568cab2a6127f6a9409a47cc41
8.0/en/os/SRPMS/Xft-2.0-4.src.rpm
6209c7cfbbe98730f86123455ff8ef32
8.0/en/os/i386/Xft-2.0-4.i386.rpm
be1bce9818dc4c6233246b75e95aaeb0
8.0/en/os/i386/Xft-devel-2.0-4.i386.rpm

These packages are GPG signed by Red Hat for security. Our key
is available from http://www.redhat.com/security/keys.html

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

8. Contact:

The Red Hat security contact is <<A
HREF=”mailto:[email protected]”>[email protected]>. More
contact details at http://www.redhat.com/solutions/security/news/contact.html

Copyright 2003 Red Hat, Inc.