[Security Announce] [ MDKSA-2006:059 ] - Updated kernel packages fix multiple vulnerabilities
Posted on: 03/23/2006 03:12 AM

The Mandriva Security Team published a new security update for Mandriva Linux. Here the announcement:

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Mandriva Linux Security Advisory MDKSA-2006:059
http://www.mandriva.com/security/
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Package : kernel
Date : March 22, 2006
Affected: 2006.0
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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
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2709
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3044
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3359
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0457
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0554
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0555
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0557
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0741
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0742
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Updated Packages:

Mandriva Linux 2006.0:
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 2006.0/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
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
lt;security*mandriva.comgt;
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