Date: Wed, 31 May 2000 11:11 -0400
From: bugzilla@redhat.com
To: redhat-watch-list@redhat.com
Subject: [RHSA-2000:005-05] New majordomo packages available
Red Hat, Inc. Security Advisory
Synopsis: New majordomo packages available
Advisory ID: RHSA-2000:005-05
Issue date: 2000-01-20
Updated on: 2000-05-31
Product: Red Hat Powertools
Keywords: majordomo
Cross references: N/A
1. Topic:
New majordomo packages are available to fix local security
problems in majordomo.
2. Relevant releases/architectures:
Red Hat Powertools 6.1 – i386 alpha sparc
3. Problem description:
A vulnerability in /usr/lib/majordomo/resend and
/usr/lib/majordomo/wrapper will allow execution of arbitrary
commands with elevated privileges.
It is recommended that all users of Red Hat Linux using the
majordomo package upgrade to the fixed package, which will resolve
the vulnerability in /usr/lib/majordomo/resend. To secure
/usr/lib/majodomo/wrapper, please read the solution section
below.
Once an official patch has been released by the majordomo
maintainers, we will release an updated package which will fix both
vulnerabilities.
4. Solution:
For each RPM for your particular architecture, run:
rpm -Fvh [filename]
where filename is the name of the RPM.
Once the package is installed, become “root” and execute this
command:
chmod o-x /usr/lib/majordomo/wrapper
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla
for more info):
N/A
6. RPMs required:
Red Hat Powertools 6.1:
intel:
ftp://ftp.redhat.com/redhat/updates/powertools/6.1/i386/majordomo-1.94.5-2.i386.rpm
alpha:
ftp://ftp.redhat.com/redhat/updates/powertools/6.1/alpha/majordomo-1.94.5-2.alpha.rpm
sparc:
ftp://ftp.redhat.com/redhat/updates/powertools/6.1/sparc/majordomo-1.94.5-2.sparc.rpm
sources:
ftp://ftp.redhat.com/redhat/updates/powertools/6.1/SRPMS/majordomo-1.94.5-2.src.rpm
7. Verification:
MD5 sum Package Name
ad994a1742d90a593b8ecfbf52634cd7 6.1/SRPMS/majordomo-1.94.5-2.src.rpm
8c829a13c2229060c899ffdc7e7db38c 6.1/alpha/majordomo-1.94.5-2.alpha.rpm
f0e22f364abcbe4c217f2b8eb180037d 6.1/i386/majordomo-1.94.5-2.i386.rpm
89e327c6c92acc97db34e541f34c0c67 6.1/sparc/majordomo-1.94.5-2.sparc.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our
key is available at: http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm –checksig
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
8. References:
Thanks to Brock Tellier at btellier@USA.NET for noting the
vulnerability in resend, to Shevek at shevek@anarres.org and Olaf Kirch
at okir@monad.swb.de for
noting the vulnerability in the wrapper.