Security update for Linux kernel (k_debug, kernel-source)
(Last modified: 30DEC2003)
solutions Security update for Linux kernel (k_debug, kernel-source) SuSE Linux Maintenance Web (beaed2f4513e03b76e02a72a130986a3)
SuSE Linux Standard Server 8
SuSE Linux Enterprise Server 8 for x86
SuSE Linux Openexchange Server 4
k_debugdebug kernel package and allow shell access to non-root accounts or want to recompile the Linux kernel sources.
kernel-sourceshould work without any problems now. Please make sure that the "Recommended update for RPM" (http://sdb.suse.de/en/psdb/html/93ded478445297c0bbe32f72a1da1ac1.html) is installed before applying this patch.
Paul Starzetz of iSEC reported a vulnerability in the
mremapsystem call, which allows local attackers to crash the machine, and even to obtain super user privileges under some circumstances. This update fixes the vulnerability.
First, find out which kernel package to use, for example with
rpm -qf /boot/vmlinuz
In case you are running a different kernel than
k_debug, please refer to article "Security update for Linux kernel" (http://sdb.suse.de/en/psdb/html/513d19fdca08209fd14957910bfa46e9.html). Proceed with these instructions only if you are using the
Download the kernel image from the location mentioned below and
install it with
rpm -Fvh k_debug-2.4.*.i586.rpm
In case you are using lilo, please make sure that you also execute the command
after installing the update for the system to remain bootable.
Finally, reboot the system with
shutdown -r now
to load the new kernel (replace "now" with the appropriate amount of time to allow local users to cleanly log out, for example "+5" for five minutes.)
For the kernel sources
This update does not directly fix the vulnerability, but it provides the kernel sources for occasions where a kernel with differnent settings needs to be compiled, e.g. for tracking certain events. To install, download the package
kernel-sourcefrom the location mentioned below and run
rpm -Uvh kernel-source-2.4.*.i586.rpm
Download Source Packages
Download the source code of the patches for maintained products.
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