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Sänt: 2002-05-11 04:09
Ärende: [RHSA-2002:081-06] perl-Digest-MD5 UTF8 bug results in incorrect MD5 sums
------------------------------------------------------------
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Red Hat, Inc. Red Hat Security Advisory
Synopsis: perl-Digest-MD5 UTF8 bug results in incorrect MD5 sums
Advisory ID: RHSA-2002:081-06
Issue date: 2002-05-06
Updated on: 2002-05-10
Product: Red Hat Linux
Keywords:
Cross references:
Obsoletes:
---------------------------------------------------------------------
1. Topic:
Updated perl-Digest-MD5 packages are available which work around a
bug in the utf8 interaction between perl-Digest-MD5 and Perl.
2. Relevant releases/architectures:
Red Hat Linux 7.3 - i386
3. Problem description:
A bug in utf8 interaction between perl-Digest-MD5 and Perl results in
utf8 strings having improper MD5 digests. This update works around
the problem and provides correct checksums for all input.
To determine if a machine is vulnerable, run the following command at
a shell prompt:
perl -le 'use Digest::MD5 qw/md5_hex/; $s = "test\x{101}"; chop $s;
print (md5_hex($s) eq md5_hex("test") ? "ok" : "not ok")'
If the output is any message other than "ok" then an upgrade is
recommended. All 7.3 systems are vulnerable; no earlier versions
should have this issue.
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):
6. RPMs required:
Red Hat Linux 7.3:
SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/perl-Digest-MD5-2.20-1.src.rpm
i386:
ftp://updates.redhat.com/7.3/en/os/i386/perl-Digest-MD5-2.20-1.i386.rpm
7. Verification:
MD5 sum Package Name
--------------------------------------------------------------------------
19f256d961bdd48a3986b113d48aa07e 7.3/en/os/SRPMS/perl-Digest-MD5-2.20-1.src.rpm
eadfe2a31835a906d895752f61fb533e 7.3/en/os/i386/perl-Digest-MD5-2.20-1.i386.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/about/contact/pgpkey.html
You can verify each package with the following command:
rpm --checksig <filename>
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 <filename>
8. References:
Copyright(c) 2000, 2001, 2002 Red Hat, Inc.
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