Red Hat Linux Security Advisory
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Synopsis	Updated GnuPG packages available

Advisory ID	RHSA-2001:073-04

Issue Date	2001-05-30

Updated On	2001-06-07

Product	Red Hat Linux

Keywords	gnupg format string

Cross References

Obsoletes	RHSA-2001:063

1. Topic:

Updated GnuPG packages are now available for Red Hat Linux 6.2, 7, and 7.1.

These updates include fixes for the recently-discovered format string
vulnerability.

2. Problem description:

Versions of GnuPG up to and including 1.0.5 include a format string
vulnerability. In some cases, this can lead to compromise of an account
being used to decrypt an encrypted file.

3. Bug IDs fixed: (see bugzilla for more information)

42674 - gnupg 1.0.6 out, fixing format string exploit

4. Relevant releases/architectures:

Red Hat Linux 6.2 - alpha, i386, sparc
Red Hat Linux 7.0 - alpha, i386
Red Hat Linux 7.1 - i386

5. RPMs required:

6. 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.

7. Verification:

MD5 sum                           Package Name
-------------------------------------------------------------------------
b2046048050eecd78b51846900294168 6.2/en/os/SRPMS/gnupg-1.0.6-0.6.x.src.rpm
31b8f7719b4ae95a930aeb291a8cd64a 6.2/en/os/alpha/gnupg-1.0.6-0.6.x.alpha.rpm
6a79e3e9f0b7d45ae6ac7dc3296c4277 6.2/en/os/i386/gnupg-1.0.6-0.6.x.i386.rpm
36fee998e3e74d36d46f8f7099b6f2ac 6.2/en/os/sparc/gnupg-1.0.6-0.6.x.sparc.rpm
95aa4c72a640b4badfa6462ee7ea61c1 7.0/en/os/SRPMS/gnupg-1.0.6-1.src.rpm
de001c49c523c54369bb067ee3db40d0 7.0/en/os/alpha/gnupg-1.0.6-1.alpha.rpm
06dea237f91666032224592e2af68894 7.0/en/os/i386/gnupg-1.0.6-1.i386.rpm
95aa4c72a640b4badfa6462ee7ea61c1 7.1/en/os/SRPMS/gnupg-1.0.6-1.src.rpm
06dea237f91666032224592e2af68894 7.1/en/os/i386/gnupg-1.0.6-1.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security. Our key is available at:
http://www.redhat.com/about/contact.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

Note that you need RPM >= 3.0 to check GnuPG keys.

8. References:

http://www.securityfocus.com/archive/1/187352
http://www.gnupg.org/whatsnew.html#rn20010529