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USN-714-1: Linux kernel vulnerabilities

29 January 2009

Linux kernel vulnerabilities

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Releases

Packages

Details

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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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 8.04
Ubuntu 7.10
Ubuntu 6.06

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

References

Related notices

  • USN-715-1: linux-image-2.6.27-11-server, linux-image-2.6.27-11-virtual, linux, linux-image-2.6.27-11-generic

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Further reading