2. Problem description:
The version of screen that shipped with Red Hat Linux 6.1
defaulted to not using Unix98 ptys. Since screen is not setuid
root, this means that it leaves the ptys with insecure permissions.
The updated packages restore the Unix98 pty support. Thanks go to
Chris Evans for noting this vulnerability.
Previous versions of Red Hat Linux are not affected by this problem.
3. Bug IDs fixed:(http://bugzilla.redhat.com/bugzilla for more info)
6100
4. Relevant releases/architectures:
Red Hat Linux 6.1, for i386
5. Obsoleted by:
None
6. Conflicts with:
None
7. RPMs required:
Intel:
ftp://updates.redhat.com/6.1/en/os/i386/
screen-3.9.4-3.i386.rpm
Source:
ftp://updates.redhat.com/6.1/en/os/SRPMS
screen-3.9.4-3.src.rpm
Architecture neutral:
ftp://updates.redhat.com/6.1/en/os/noarch/
8. Solution:
For each RPM for your particular architecture, run:
rpm -Uvh filename
where filename is the name of the RPM.
9. Verification:
MD5 sum Package Name
-------------------------------------------------------------------------
2e5ada61d3d06408bae76bf581d2bf69 screen-3.9.4-3.i386.rpm
09277e5b10b709ac2d974b952cb29e9b screen-3.9.4-3.src.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
10. References: