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Re: [SECURITY] [DSA 1017-1] New Linux kernel 2.6.8 packages fix several vulnerabilities



On 03/23/2006 04:58 PM, Moritz Muehlenhoff wrote:
> --------------------------------------------------------------------------
> Debian Security Advisory DSA 1017-1                    security@debian.org
> http://www.debian.org/security/                 Dann Frazier, Simon Horman
> March 23th, 2006                        http://www.debian.org/security/faq
> --------------------------------------------------------------------------
> 
> Package        : kernel-source-2.6.8
> Vulnerability  : several
> Problem-Type   : local/remote
> Debian-specific: no
> CVE ID         : CVE-2004-1017 CVE-2005-0124 CVE-2005-0449 CVE-2005-2457 CVE-2005-2490 CVE-2005-2555 CVE-2005-2709 CVE-2005-2800 CVE-2005-2973 CVE-2005-3044 CVE-2005-3053 CVE-2005-3055 CVE-2005-3180 CVE-2005-3181 CVE-2005-3257 CVE-2005-3356 CVE-2005-3358 CVE-2005-3783 CVE-2005-3784 CVE-2005-3806 CVE-2005-3847 CVE-2005-3848 CVE-2005-3857 CVE-2005-3858 CVE-2005-4605 CVE-2005-4618 CVE-2006-0095 CVE-2006-0096 CVE-2006-0482 CVE-2006-1066
> Debian Bug     : 295949 334113 330287 332587 332596 330343 330353 327416
> 
> Several local and remote vulnerabilities have been discovered in the Linux
> kernel that may lead to a denial of service or the execution of arbitrary
> code. The Common Vulnerabilities and Exposures project identifies the
> following problems:

[snip]

> The following matrix explains which kernel version for which architecture
> fix the problems mentioned above:
> 
>                                  Debian 3.1 (sarge)
>      Source                      2.6.8-16sarge2
>      Alpha architecture          2.6.8-16sarge2
>      AMD64 architecture          2.6.8-16sarge2
>      HP Precision architecture   2.6.8-6sarge2
>      Intel IA-32 architecture    2.6.8-16sarge2
>      Intel IA-64 architecture    2.6.8-14sarge2
>      Motorola 680x0 architecture 2.6.8-4sarge2
>      PowerPC architecture        2.6.8-12sarge2
>      IBM S/390 architecture      2.6.8-5sarge2
>      Sun Sparc architecture      2.6.8-15sarge2
> 
> The following matrix lists additional packages that were rebuilt for
> compatability with or to take advantage of this update:
> 
>                                  Debian 3.1 (sarge)
>      kernel-latest-2.6-alpha     101sarge1
>      kernel-latest-2.6-amd64     103sarge1
>      kernel-latest-2.6-hppa      2.6.8-1sarge1
>      kernel-latest-2.6-sparc     101sarge1
>      kernel-latest-2.6-i386      101sarge1
>      kernel-latest-powerpc       102sarge1
>      fai-kernels                 1.9.1sarge1
>      hostap-modules-i386         0.3.7-1sarge1
>      mol-modules-2.6.8           0.9.70+2.6.8+12sarge1
>      ndiswrapper-modules-i386    1.1-2sarge1
> 
> We recommend that you upgrade your kernel package immediately and reboot
> the machine. If you have built a custom kernel from the kernel source
> package, you will need to rebuild to take advantage of these fixes.
> 
> This update introduces a change in the kernel's binary interface, the affected
> kernel packages inside Debian have been rebuilt, if you're running local addons
> you'll need to rebuild these as well.
> 
> Upgrade Instructions

[snip]


Possible problem with automatic upgrades:
========================================

aptitude update/upgrade did not automatically install the security
update for my sarge systems.

I had to manually install kernel-image-2.6-686, otherwise no upgrade was
initiated.  The usual warning to reboot the system was also missing.

If I did not subscribe to debian-security-announce, I never would have
known that aptitude update/upgrade would /miss/ this important security
upgrade.

My systems were installed from sarge ISO and net-installed:

ls -l /var/log/debian-installer/messages
-rw-r--r--  1 root root 38K 2006-01-04 16:19
/var/log/debian-installer/messages

grep kernel-image-2.6 /var/log/debian-installer/messages
  kernel-image-2.6.8-2-686 module-init-tools
Selecting previously deselected package kernel-image-2.6.8-2-686.
Unpacking kernel-image-2.6.8-2-686 (from
.../kernel-image-2.6.8-2-686_2.6.8-16_i386.deb) ...
Setting up kernel-image-2.6.8-2-686 (2.6.8-16) ...


So... kernel-image-2.6-686 was never installed until I manually
installed it just now.

Please consider that other users who do not subscribe to
debian-security-announce may be unprotected by relying on aptitude or
apt-get upgrades for security upgrades, if my experience is not unusual.

Thank you and regards,
Ralph



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