Security Update:Linux kernel vulnerabilities

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A security issue affects the following Ubuntu releases:

Ubuntu 6.06 LTS
Ubuntu 7.10
Ubuntu 8.04 LTS

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 6.06 LTS:
linux-image-2.6.15-53-386       2.6.15-53.75
linux-image-2.6.15-53-686       2.6.15-53.75
linux-image-2.6.15-53-amd64-generic  2.6.15-53.75
linux-image-2.6.15-53-amd64-k8  2.6.15-53.75
linux-image-2.6.15-53-amd64-server  2.6.15-53.75
linux-image-2.6.15-53-amd64-xeon  2.6.15-53.75
linux-image-2.6.15-53-hppa32    2.6.15-53.75
linux-image-2.6.15-53-hppa32-smp  2.6.15-53.75
linux-image-2.6.15-53-hppa64    2.6.15-53.75
linux-image-2.6.15-53-hppa64-smp  2.6.15-53.75
linux-image-2.6.15-53-itanium   2.6.15-53.75
linux-image-2.6.15-53-itanium-smp  2.6.15-53.75
linux-image-2.6.15-53-k7        2.6.15-53.75
linux-image-2.6.15-53-mckinley  2.6.15-53.75
linux-image-2.6.15-53-mckinley-smp  2.6.15-53.75
linux-image-2.6.15-53-powerpc   2.6.15-53.75
linux-image-2.6.15-53-powerpc-smp  2.6.15-53.75
linux-image-2.6.15-53-powerpc64-smp  2.6.15-53.75
linux-image-2.6.15-53-server    2.6.15-53.75
linux-image-2.6.15-53-server-bigiron  2.6.15-53.75
linux-image-2.6.15-53-sparc64   2.6.15-53.75
linux-image-2.6.15-53-sparc64-smp  2.6.15-53.75

Ubuntu 7.10:
linux-image-2.6.22-16-386       2.6.22-16.61
linux-image-2.6.22-16-cell      2.6.22-16.61
linux-image-2.6.22-16-generic   2.6.22-16.61
linux-image-2.6.22-16-hppa32    2.6.22-16.61
linux-image-2.6.22-16-hppa64    2.6.22-16.61
linux-image-2.6.22-16-itanium   2.6.22-16.61
linux-image-2.6.22-16-lpia      2.6.22-16.61
linux-image-2.6.22-16-lpiacompat  2.6.22-16.61
linux-image-2.6.22-16-mckinley  2.6.22-16.61
linux-image-2.6.22-16-powerpc   2.6.22-16.61
linux-image-2.6.22-16-powerpc-smp  2.6.22-16.61
linux-image-2.6.22-16-powerpc64-smp  2.6.22-16.61
linux-image-2.6.22-16-rt        2.6.22-16.61
linux-image-2.6.22-16-server    2.6.22-16.61
linux-image-2.6.22-16-sparc64   2.6.22-16.61
linux-image-2.6.22-16-sparc64-smp  2.6.22-16.61
linux-image-2.6.22-16-ume       2.6.22-16.61
linux-image-2.6.22-16-virtual   2.6.22-16.61
linux-image-2.6.22-16-xen       2.6.22-16.61

Ubuntu 8.04 LTS:
linux-image-2.6.24-23-386       2.6.24-23.48
linux-image-2.6.24-23-generic   2.6.24-23.48
linux-image-2.6.24-23-hppa32    2.6.24-23.48
linux-image-2.6.24-23-hppa64    2.6.24-23.48
linux-image-2.6.24-23-itanium   2.6.24-23.48
linux-image-2.6.24-23-lpia      2.6.24-23.48
linux-image-2.6.24-23-lpiacompat  2.6.24-23.48
linux-image-2.6.24-23-mckinley  2.6.24-23.48
linux-image-2.6.24-23-openvz    2.6.24-23.48
linux-image-2.6.24-23-powerpc   2.6.24-23.48
linux-image-2.6.24-23-powerpc-smp  2.6.24-23.48
linux-image-2.6.24-23-powerpc64-smp  2.6.24-23.48
linux-image-2.6.24-23-rt        2.6.24-23.48
linux-image-2.6.24-23-server    2.6.24-23.48
linux-image-2.6.24-23-sparc64   2.6.24-23.48
linux-image-2.6.24-23-sparc64-smp  2.6.24-23.48
linux-image-2.6.24-23-virtual   2.6.24-23.48
linux-image-2.6.24-23-xen       2.6.24-23.48

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.

Details follow:

Hugo Dias discovered that the ATM subsystem did not correctly manage socket
counts. A local attacker could exploit this to cause a system hang, leading
to a denial of service. (CVE-2008-5079)

It was discovered that the libertas wireless driver did not correctly
handle beacon and probe responses. A physically near-by attacker could
generate specially crafted wireless network traffic and cause a denial of
service. Ubuntu 6.06 was not affected. (CVE-2008-5134)

It was discovered that the inotify subsystem contained watch removal race
conditions. A local attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2008-5182)

Dann Frazier discovered that in certain situations sendmsg did not
correctly release allocated memory. A local attacker could exploit this to
force the system to run out of free memory, leading to a denial of service.
Ubuntu 6.06 was not affected.  (CVE-2008-5300)

It was discovered that the ATA subsystem did not correctly set timeouts. A
local attacker could exploit this to cause a system hang, leading to a
denial of service. (CVE-2008-5700)

It was discovered that the ib700 watchdog timer did not correctly check
buffer sizes. A local attacker could send a specially crafted ioctl to the
device to cause a system crash, leading to a denial of service.
(CVE-2008-5702)

It was discovered that in certain situations the network scheduler did not
correctly handle very large levels of traffic. A local attacker could
produce a high volume of UDP traffic resulting in a system hang, leading to
a denial of service. Ubuntu 8.04 was not affected. (CVE-2008-5713)

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2 thoughts on “Security Update:Linux kernel vulnerabilities

  1. linux-image-2.6.15-53-686 SMP update Feb 2009 rendered my Ubuntu 6.06LTS unbootable saying that kernel image was wrong format. This is very bad indeed. Rolled back to 52 version and all fine.

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