2. 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.
3. Bug IDs fixed: (see bugzilla for more information)
4. Relevant releases/architectures:
5. Obsoleted by:
N/A
6. Conflicts with:
N/A
7. RPMs required:
Red Hat Linux 6.1:
8. Solution:
For each RPM for your particular architecture, run:
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
9. Verification:
MD5 sum Package Name
-------------------------------------------------------------------------
ad994a1742d90a593b8ecfbf52634cd7 6.1/en/os/SRPMS/majordomo-1.94.5-2.src.rpm
8c829a13c2229060c899ffdc7e7db38c 6.1/en/os/alpha/majordomo-1.94.5-2.alpha.rpm
f0e22f364abcbe4c217f2b8eb180037d 6.1/en/os/i386/majordomo-1.94.5-2.i386.rpm
89e327c6c92acc97db34e541f34c0c67 6.1/en/os/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/about/contact.html
You can verify each package with the following command:
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.
10. 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.