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Package name	kernel
Date	March 22nd, 2006
Advisory ID	MDKSA-2006:059
Affected versions	2006.0

Problem Description

A number of vulnerabilities were discovered and corrected in the Linux
2.6 kernel:

sysctl.c in the Linux kernel prior to 2.6.14.1 allows local users to
cause a Denial of Service (kernel oops) and possibly execute code by
opening an interface file in /proc/sys/net/ipv4/conf/, waiting until
the interface is unregistered, then obtaining and modifying function
pointers in memory that was used for the ctl_table (CVE-2005-2709).

Multiple vulnerabilities in versions prior to 2.6.13.2 allow local
users to cause a DoS (oops from null dereference) via fput in a 32bit
ioctl on 64-bit x86 systems or sockfd_put in the 32-bit routing_ioctl
function on 64-bit systems (CVE-2005-3044). Note that this was
previously partially corrected in MDKSA-2005:235.

Prior to 2.6.14, the kernel's atm module allows local users to cause a
DoS (panic) via certain socket calls that produce inconsistent reference
counts for loadable protocol modules (CVE-2005-3359).

A race condition in the (1) add_key, (2) request_key, and (3) keyctl
functions in the 2.6.x kernel allows local users to cause a DoS (crash)
or read sensitive kernel memory by modifying the length of a string
argument between the time that the kernel calculates the length and
when it copies the data into kernel memory (CVE-2006-0457).

Prior to 2.6.15.5, the kernel allows local users to obtain sensitive
information via a crafted XFS ftruncate call, which may return stale
data (CVE-2006-0554).

Prior to 2.6.15.5, the kernel allows local users to cause a DoS (NFS
client panic) via unknown attack vectors related to the use of O_DIRECT
(CVE-2006-0555).

Prior to an including kernel 2.6.16, sys_mbind in mempolicy.c does not
sanity check the maxnod variable before making certain computations,
which has an unknown impact and attack vectors (CVE-2006-0557).

Prior to 2.6.15.5, the kernel allows local users to cause a DoS
("endless recursive fault") via unknown attack vectors related to a
"bad elf entry address" on Intel processors (CVE-2006-0741).

Prior to 2.6.15.6, the die_if_kernel function in the kernel can allow
local users to cause a DoS by causing user faults on Itanium systems
(CVE-2006-00742).

A race in the signal-handling code which allows a process to become
unkillable when the race is triggered was also fixed.

In addition to these security fixes, other fixes have been included
such as:

- add ich8 support
- libata locking rewrite
- libata clear ATA_QCFLAG_ACTIVE flag before calling the completion
callback
- support the Acer Aspire 5xxx/3xxx series in the acerhk module
- USB storage: remove info sysfs file as it violates the sysfs one
value per file rule
- fix OOPS in sysfs_hash_and_remove_file()
- pl2303 USB driver fixes; makes pl2303HX chip work correctly
- fix OOPS in IPMI driver which is probably caused when trying to use
ACPI functions when ACPI was not properly initialized
- fix de_thread() racy BUG_ON()

The provided packages are patched to fix these vulnerabilities. All
users are encouraged to upgrade to these updated kernels.

To update your kernel, please follow the directions located at:

http://www.mandriva.com/en/security/kernelupdate

Please note that users using the LSI Logic 53c1030 dual-channel ultra
320 SCSI card will need to re-create their initrd images manually
prior to rebooting in order to fix a bug that prevents booting. A
future update will correct this problem. To do this, execute:

# rm /boot/initrd-2.6.12-18mdk.img
# mkinitrd /boot/initrd-2.6.12-18mdk.img 2.6.12-18mdk --with-module=mptspi

Updated Packages

Mandriva Linux 2006

 1b218623b306f20afa82d0016d7f2b02  2006.0/RPMS/kernel-2.6.12.18mdk-1-1mdk.i586.rpm
 a051bd99d550490b0f878e53e68dad2f  2006.0/RPMS/kernel-BOOT-2.6.12.18mdk-1-1mdk.i586.rpm
 2ed8565ec9f4bbf280ee38563cbf5ae9  2006.0/RPMS/kernel-i586-up-1GB-2.6.12.18mdk-1-1mdk.i586.rpm
 93f467fbc20508c7cfcc1291c00883a4  2006.0/RPMS/kernel-i686-up-4GB-2.6.12.18mdk-1-1mdk.i586.rpm
 6d682e1336225bfe35c145a9b735cee2  2006.0/RPMS/kernel-smp-2.6.12.18mdk-1-1mdk.i586.rpm
 e2a7bf396ef80eb13b3b49e49a632d5e  2006.0/RPMS/kernel-source-2.6-2.6.12-18mdk.i586.rpm
 61e26ccfa23888a5e877137565bd2e62  2006.0/RPMS/kernel-source-stripped-2.6-2.6.12-18mdk.i586.rpm
 d6b3b6357df23337584dcf53d17468d3  2006.0/RPMS/kernel-xbox-2.6.12.18mdk-1-1mdk.i586.rpm
 4b6b2309768ff66a5277cd0b2ad6135f  2006.0/RPMS/kernel-xen0-2.6.12.18mdk-1-1mdk.i586.rpm
 6ea381cb538e6f845bdf7dd10f15b623  2006.0/RPMS/kernel-xenU-2.6.12.18mdk-1-1mdk.i586.rpm
 661bf62bc99323115940fd5a088df875  2006.0/SRPMS/kernel-2.6.12.18mdk-1-1mdk.src.rpm

Mandriva Linux 2006/X86_64

 f01f7df9165bc18cecef5c306fadd288  x86_64/2006.0/RPMS/kernel-2.6.12.18mdk-1-1mdk.x86_64.rpm
 d1c1a1bd3a95220dbb33dc51a8bf6515  x86_64/2006.0/RPMS/kernel-BOOT-2.6.12.18mdk-1-1mdk.x86_64.rpm
 bab61b2878c55528c09c327e8fdbb444  x86_64/2006.0/RPMS/kernel-smp-2.6.12.18mdk-1-1mdk.x86_64.rpm
 222a970d935dcd178f943e2cedb96091  x86_64/2006.0/RPMS/kernel-source-2.6-2.6.12-18mdk.x86_64.rpm
 2a327a55284339a3cec137b10f55b16d  x86_64/2006.0/RPMS/kernel-source-stripped-2.6-2.6.12-18mdk.x86_64.rpm
 661bf62bc99323115940fd5a088df875  x86_64/2006.0/SRPMS/kernel-2.6.12.18mdk-1-1mdk.src.rpm

References

Upgrade

To upgrade automatically, use MandrivaUpdate.

Verification

Please verify the update prior to upgrading to ensure the integrity of the downloaded package. You can do this with the command :

		rpm --checksig package.rpm

You can get the GPG public key of the Mandriva Security Team to verify the GPG signature of each RPM.

If you use MandrivaUpdate, the verification of md5 checksum and GPG signature is performed automatically for you.