---------------------------------------------------------------------
                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          New kernel 2.4 packages are available
Advisory ID:       RHSA-2001:129-05
Issue date:        2001-10-09
Updated on:        2001-10-18
Product:           Red Hat Linux
Keywords:          ptrace local root kernel
Cross references:  
Obsoletes:         
---------------------------------------------------------------------

1. Topic:

A vulnerability has been found in the ptrace code of the kernel (ptrace is
the part that allows program debuggers to run) that could be abused by
local users to gain root privileges.

2. Relevant releases/architectures:

Red Hat Linux 7.1 - alpha, i386, i586, i686, ia64, noarch

3. Problem description:



4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied. 

The procedure for upgrading the kernel is documented at:

http://www.redhat.com/support/docs/howto/kernel-upgrade/kernel-upgrade.html

Please read the directions for your architecture carefully before
proceeding with the kernel upgrade.

Please note that this update is also available via Red Hat Network.  Many
people find this to be 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. Note that you need to select the kernel
explicitly on default configurations of up2date.

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):



6. RPMs required:

Red Hat Linux 7.1:

SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/kernel-2.4.9-6.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/initscripts-5.84.1-1.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/filesystem-2.1.0-2.1.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/mkinitrd-3.2.6-1.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/e2fsprogs-1.23-1.7.1.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/tux-2.1.0-2.src.rpm
ftp://updates.redhat.com/7.1/en/os/SRPMS/modutils-2.4.6-4.src.rpm

alpha:
ftp://updates.redhat.com/7.1/en/os/alpha/kernel-2.4.9-6.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/kernel-source-2.4.9-6.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/kernel-headers-2.4.9-6.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/kernel-doc-2.4.9-6.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/kernel-smp-2.4.9-6.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/kernel-BOOT-2.4.9-6.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/initscripts-5.84.1-1.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/mkinitrd-3.2.6-1.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/e2fsprogs-1.23-1.7.1.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/e2fsprogs-devel-1.23-1.7.1.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/tux-2.1.0-2.alpha.rpm
ftp://updates.redhat.com/7.1/en/os/alpha/modutils-2.4.6-4.alpha.rpm

i386:
ftp://updates.redhat.com/7.1/en/os/i386/kernel-2.4.9-6.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-source-2.4.9-6.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-headers-2.4.9-6.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-doc-2.4.9-6.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/kernel-BOOT-2.4.9-6.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/initscripts-5.84.1-1.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/mkinitrd-3.2.6-1.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/e2fsprogs-1.23-1.7.1.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/e2fsprogs-devel-1.23-1.7.1.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/tux-2.1.0-2.i386.rpm
ftp://updates.redhat.com/7.1/en/os/i386/modutils-2.4.6-4.i386.rpm

i586:
ftp://updates.redhat.com/7.1/en/os/i586/kernel-2.4.9-6.i586.rpm
ftp://updates.redhat.com/7.1/en/os/i586/kernel-smp-2.4.9-6.i586.rpm

i686:
ftp://updates.redhat.com/7.1/en/os/i686/kernel-2.4.9-6.i686.rpm
ftp://updates.redhat.com/7.1/en/os/i686/kernel-smp-2.4.9-6.i686.rpm
ftp://updates.redhat.com/7.1/en/os/i686/kernel-enterprise-2.4.9-6.i686.rpm

ia64:
ftp://updates.redhat.com/7.1/en/os/ia64/kernel-2.4.9-6.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/kernel-source-2.4.9-6.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/kernel-headers-2.4.9-6.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/kernel-doc-2.4.9-6.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/kernel-smp-2.4.9-6.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/initscripts-5.84.1-1.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/tux-2.1.0-2.ia64.rpm
ftp://updates.redhat.com/7.1/en/os/ia64/modutils-2.4.6-4.ia64.rpm

noarch:
ftp://updates.redhat.com/7.1/en/os/noarch/filesystem-2.1.0-2.1.noarch.rpm



7. Verification:

MD5 sum                           Package Name
--------------------------------------------------------------------------
c0de6c2dc68b7fd8c2387a609f831300
 7.1/en/os/SRPMS/e2fsprogs-1.23-1.7.1.src.rpmf1b186064204b0847d65e5ed410326c0 7.1/en/os/SRPMS/filesystem-2.1.0-2.1.src.rpm0a9eabee87e02f38daac18608c700602 7.1/en/os/SRPMS/initscripts-5.84.1-1.src.rpmade852159b65d73889ae3b6a81bca7fc 7.1/en/os/SRPMS/kernel-2.4.9-6.src.rpmafcbfa7fcb7c15bc39db1fd4fb7ceb0d 7.1/en/os/SRPMS/mkinitrd-3.2.6-1.src.rpmceb368d11b19472703996d4a74a80b4b 7.1/en/os/SRPMS/modutils-2.4.6-4.src.rpm69ee0f556efb223f0b83cd242328777f 7.1/en/os/SRPMS/tux-2.1.0-2.src.rpm1b288a8f56975831d016fd367f2fcf9a 7.1/en/os/alpha/e2fsprogs-1.23-1.7.1.alpha.rpm98335c23fa4002f5f7fbc4ddff7cf7f3 7.1/en/os/alpha/e2fsprogs-devel-1.23-1.7.1.alpha.rpm545c22afe254117c978f60508d617e21 7.1/en/os/alpha/initscripts-5.84.1-1.alpha.rpm6c7524b6c96ef1a8b0877041fa1b8713 7.1/en/os/alpha/kernel-2.4.9-6.alpha.rpmb81e3e4fcf47c2b69ec863fa3e38ba0c 7.1/en/os/alpha/kernel-BOOT-2.4.9-6.alpha.rpmcc0e07a8431d3abb2213a47f4c035c18 7.1/en/os/alpha/kernel-doc-2.4.9-6.alpha.rpmcf!
170c33eed766795529a2fa25f5347f
 7.1/en/os/alpha/kernel-headers-2.4.9-6.alpha.rpma06ef52b0f35d5b7cbf0bcbb6cf3c126 7.1/en/os/alpha/kernel-smp-2.4.9-6.alpha.rpmee5d668bca79e61169dff2cac03923a9 7.1/en/os/alpha/kernel-source-2.4.9-6.alpha.rpm6b72c828a17d10d584e6a456ec58cb8e 7.1/en/os/alpha/mkinitrd-3.2.6-1.alpha.rpm523cb756275604b76df81edce0aa96dd 7.1/en/os/alpha/modutils-2.4.6-4.alpha.rpm214ec9cb9c826f532aa22549215b624d 7.1/en/os/alpha/tux-2.1.0-2.alpha.rpm10429f3d3ec1c0efb63cdabdc732d3f8 7.1/en/os/i386/e2fsprogs-1.23-1.7.1.i386.rpmf95277f4257eeaa1af44c0dc4f88c89d 7.1/en/os/i386/e2fsprogs-devel-1.23-1.7.1.i386.rpm684f6a19a6b5a4a6ed12193216df7a28 7.1/en/os/i386/initscripts-5.84.1-1.i386.rpm973a8b27ca9e8ee8a782f8828049d1a3 7.1/en/os/i386/kernel-2.4.9-6.i386.rpm03b81b6ee99298b80a639a566e010984 7.1/en/os/i386/kernel-BOOT-2.4.9-6.i386.rpm740a3a9798ac5c09dc63244cc68245ad 7.1/en/os/i386/kernel-doc-2.4.9-6.i386.rpm87d776c849b1e5e0a3768200d9ea7905 7.1/en/os/i386/kernel-headers-2.4.9-6.i38!
6.rpm79fe87b50f4b246de850699e38a98b79 7.1/en/os/i386/kernel-source-2.4
/os/i386/mkinitrd-3.2.6-1.i386.rpm30bf3dada85275f85e77e5362eb4c008
 7.1/en/os/i386/modutils-2.4.6-4.i386.rpmddb1a483f925f7a9a15710b0ac463264 7.1/en/os/i386/tux-2.1.0-2.i386.rpm5791131b49492d35059cd9e9522fa93e 7.1/en/os/i586/kernel-2.4.9-6.i586.rpm835c39b74fc422bd71a35971680bbf59 7.1/en/os/i586/kernel-smp-2.4.9-6.i586.rpmc1ed1963d569389452c2d0af69a0820a 7.1/en/os/i686/kernel-2.4.9-6.i686.rpme26159a6f77e6c6be26cbe224616bf32 7.1/en/os/i686/kernel-enterprise-2.4.9-6.i686.rpmfe3a3765b0f9f1271c22a961381f3ae1 7.1/en/os/i686/kernel-smp-2.4.9-6.i686.rpm3c402853c7e902c63af9ee6a69347dc6 7.1/en/os/ia64/initscripts-5.84.1-1.ia64.rpm46300b1cd84ef06e2e22826501101bb5 7.1/en/os/ia64/kernel-2.4.9-6.ia64.rpm97bea74c79f97f68e3527e487c69c700 7.1/en/os/ia64/kernel-doc-2.4.9-6.ia64.rpm0c0ac573d838a737232ef460192e641b 7.1/en/os/ia64/kernel-headers-2.4.9-6.ia64.rpmef0650b6f73a3e2451450ffa03a0ccfa 7.1/en/os/ia64/kernel-smp-2.4.9-6.ia64.rpmfc2b5c49995bb3b4c656992325760ea8 7.1/en/os/ia64/kernel-source-2!
.4.9-6.ia64.rpmc976c028f57bef2caa4da97f0d95dbc2
 7.1/en/os/ia64/modutils-2.4.6-4.ia64.rpm6b372e64d483bc180e63a9a58e10fcd6 7.1/en/os/ia64/tux-2.1.0-2.ia64.rpmcbebb62e10affc94f4896caf149dfac2 7.1/en/os/noarch/filesystem-2.1.0-2.1.noarch.rpm

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

8. References:




Copyright(c) 2000, 2001 Red Hat, Inc.



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