[Security Announce] [ MDKSA-2006:151 ] - Updated kernel packages fix multiple vulnerabilities
Posted on: 08/25/2006 10:05 PM

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

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Mandriva Linux Security Advisory MDKSA-2006:151
http://www.mandriva.com/security/
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Package : kernel
Date : August 25, 2006
Affected: 2006.0
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Problem Description:

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

Prior to and including 2.6.16-rc2, when running on x86_64 systems with
preemption enabled, local users can cause a DoS (oops) via multiple
ptrace tasks that perform single steps (CVE-2006-1066).

Prior to 2.6.16, a directory traversal vulnerability in CIFS could
allow a local user to escape chroot restrictions for an SMB-mounted
filesystem via "..\\\\" sequences (CVE-2006-1863).

Prior to 2.6.16, a directory traversal vulnerability in smbfs could
allow a local user to escape chroot restrictions for an SMB-mounted
filesystem via "..\\\\" sequences (CVE-2006-1864).

Prior to to 2.6.16.23, SCTP conntrack in netfilter allows remote
attackers to cause a DoS (crash) via a packet without any chunks,
causing a variable to contain an invalid value that is later used to
dereference a pointer (CVE-2006-2934).

The dvd_read_bca function in the DVD handling code assigns the wrong
value to a length variable, which could allow local users to execute
arbitrary code via a crafted USB storage device that triggers a buffer
overflow (CVE-2006-2935).

Prior to 2.6.17, the ftdi_sio driver could allow local users to cause
a DoS (memory consumption) by writing more data to the serial port than
the hardware can handle, causing the data to be queued (CVE-2006-2936).

The 2.6 kernel, when using both NFS and EXT3, allowed remote attackers
to cause a DoS (file system panic) via a crafted UDP packet with a V2
lookup procedure that specifies a bad file handle (inode number),
triggering an error and causing an exported directory to be remounted
read-only (CVE-2006-3468).

The 2.6 kernel's SCTP was found to cause system crashes and allow for
the possibility of local privilege escalation due to a bug in the
get_user_iov_size() function that doesn't properly handle overflow when
calculating the length of iovec (CVE-2006-3745).

The provided packages are patched to fix these vulnerabilities. All
users are encouraged to upgrade to these updated kernels immediately
and reboot to effect the fixes.

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

- added support for new devices:
o Testo products in usb-serial
o ATI SB600 IDE
o ULI M-1573 south Bridge
o PATA and SATA support for nVidia MCP55, MCP61, MCP65, and AMD CS5536
o Asus W6A motherboard in snd-hda-intel
o bcm 5780
- fixed ip_gre module unload OOPS
- enabled opti621 driver for x86 and x86_64
- fixed a local DoS introduced by an imcomplete fix for CVE-2006-2445
- updated to Xen 3.0.1 with selected fixes
- enable hugetlbfs

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

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

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1066
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1863
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1864
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2934
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2935
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2936
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3468
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3745
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Updated Packages:

Mandriva Linux 2006.0:
9b4811892823bfa6ddfa648f029ee500 2006.0/RPMS/kernel-2.6.12.25mdk-1-1mdk.i586.rpm
27e6afeac2d98e07cd8a16d2ffa8de28 2006.0/RPMS/kernel-BOOT-2.6.12.25mdk-1-1mdk.i586.rpm
dcd2a1843a5f56c286a0e6270c7b1d79 2006.0/RPMS/kernel-i586-up-1GB-2.6.12.25mdk-1-1mdk.i586.rpm
477b78d6836d03484a58720f2137e506 2006.0/RPMS/kernel-i686-up-4GB-2.6.12.25mdk-1-1mdk.i586.rpm
ab1f7540dbfd41f469f4931a710dbe95 2006.0/RPMS/kernel-smp-2.6.12.25mdk-1-1mdk.i586.rpm
ed246f8b552bb26bb8e89c0c0842bbe9 2006.0/RPMS/kernel-source-2.6.12.25mdk-1-1mdk.i586.rpm
acb15b08ed7f7d2ad3747c555a07b401 2006.0/RPMS/kernel-source-stripped-2.6.12.25mdk-1-1mdk.i586.rpm
ede19a2f7dd7b715c58e9c61ee1c3359 2006.0/RPMS/kernel-xbox-2.6.12.25mdk-1-1mdk.i586.rpm
848a9f9725f141077a34affb42088946 2006.0/RPMS/kernel-xen0-2.6.12.25mdk-1-1mdk.i586.rpm
d280fd356d01831e6dbe5f0fc73c741b 2006.0/RPMS/kernel-xenU-2.6.12.25mdk-1-1mdk.i586.rpm
c0a388efafe83a187a58d582ddf9cafb 2006.0/SRPMS/kernel-2.6.12.25mdk-1-1mdk.src.rpm

Mandriva Linux 2006.0/X86_64:
54c6b69a3ce44d4dfb217f4b4f620293 x86_64/2006.0/RPMS/kernel-2.6.12.25mdk-1-1mdk.x86_64.rpm
0eded734bf839d253c18d4849507a687 x86_64/2006.0/RPMS/kernel-BOOT-2.6.12.25mdk-1-1mdk.x86_64.rpm
c379d55bcaee5070b46475b2e1cbce0a x86_64/2006.0/RPMS/kernel-smp-2.6.12.25mdk-1-1mdk.x86_64.rpm
2fad12f6ea68fdd1d000c2602f47a0a3 x86_64/2006.0/RPMS/kernel-source-2.6.12.25mdk-1-1mdk.x86_64.rpm
1ae8c5f75d5660e511cfe2db62a02056 x86_64/2006.0/RPMS/kernel-source-stripped-2.6.12.25mdk-1-1mdk.x86_64.rpm
160c2425b4be695feaafffdb59cc8fcd x86_64/2006.0/RPMS/kernel-xen0-2.6.12.25mdk-1-1mdk.x86_64.rpm
677a458c0eb70f9f8a5bd9553b96f589 x86_64/2006.0/RPMS/kernel-xenU-2.6.12.25mdk-1-1mdk.x86_64.rpm
c0a388efafe83a187a58d582ddf9cafb x86_64/2006.0/SRPMS/kernel-2.6.12.25mdk-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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