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RedHat: gpm privilege problem Print E-mail
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Posted by Team   
RedHat Linux gpm-root (part of the gpm packge) fails to drop gid 0 priviledges when executing user commands.

Package gpm

Synopsis gpm-root priviledge

Advisory ID RHSA-2000:009-02

Issue Date 2000-04-07

Updated on 2000-04-10

Product Red Hat Linux

Keywords gpm gpm-root gid 0 priviledge

1. Topic:
gpm-root (part of the gpm packge) fails to drop gid 0 priviledges when executing user commands.

2. Problem description:

gpm is a cut and paste utility and mouse server for virtual consoles. As part of this package, the gpm-root program allows people to define menus and actions for display when clicking on the background of current tty.

The current gpm-root program fails to correctly give up the group id 0 membership for user defined menus. If you are running gpm-root on your system then you are at risk.

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

    10340 - Exploit in gpm-root.
    10644 - gpm security problem in gpm-root

4. Relevant releases/architectures:

5. Obsoleted by:

6. Conflicts with:

7. RPMs required:

Red Hat Linux 4.2:

Red Hat Linux 5.2:

Red Hat Linux 6.0, 6.1, 6.2:

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

b8278a5d0a867a2fd8e6ac4a927627cb  4.2/alpha/gpm-1.19.1-0.4.2.alpha.rpm
c5075756a0f74c36a94c78ccda496412  4.2/sparc/gpm-1.19.1-0.4.2.sparc.rpm
b3d87c92880a9bf80d0fd3ff944e907b  4.2/SRPMS/gpm-1.19.1-0.4.2.src.rpm
7112c804fd008e137f8d6551460c10d7  4.2/i386/gpm-1.19.1-0.4.2.i386.rpm
79ebec95b2d6e48f60d4e34cfdee6f93  5.2/i386/gpm-1.19.1-0.5.2.i386.rpm
c4cdced5149e773733458c234ede2ac7  5.2/SRPMS/gpm-1.19.1-0.5.2.src.rpm
330e555a09e7b5c85187d348dbf453e6  5.2/alpha/gpm-1.19.1-0.5.2.alpha.rpm
5ceda554f2549c100a88d6370e45e2f6  5.2/sparc/gpm-1.19.1-0.5.2.sparc.rpm
867c4316ec0645fd8e51b674646ef44d  6.2/alpha/gpm-1.19.1-1.alpha.rpm
fbeb89d319776e7eb3af1db15679e93f  6.2/sparc/gpm-1.19.1-1.sparc.rpm
86a800ce94206877edc4f6e88272deee  6.2/i386/gpm-1.19.1-1.i386.rpm
8dedce47f4e6aa7bbfb36d9630561cd4  6.2/SRPMS/gpm-1.19.1-1.src.rpm

These packages are GPG signed by Red Hat, Inc. for security. Our key is available at:

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.

10. References:

Thanks also go to Egmont Koblinger and the members of the Bugtraq list.

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