Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-614-1: Linux kernel vulnerabilities

3 June 2008

Linux kernel vulnerabilities

Reduce your security exposure

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.

Learn more about Ubuntu Pro

Releases

Packages

Details

It was discovered that PowerPC kernels did not correctly handle reporting
certain system details. By requesting a specific set of information,
a local attacker could cause a system crash resulting in a denial
of service. (CVE-2007-6694)

A race condition was discovered between dnotify fcntl() and close() in
the kernel. If a local attacker performed malicious dnotify requests,
they could cause memory consumption leading to a denial of service,
or possibly send arbitrary signals to any process. (CVE-2008-1375)

On SMP systems, a race condition existed in fcntl(). Local attackers
could perform malicious locks, causing system crashes and leading to
a denial of service. (CVE-2008-1669)

The tehuti network driver did not correctly handle certain IO functions.
A local attacker could perform malicious requests to the driver,
potentially accessing kernel memory, leading to privilege escalation
or access to private system information. (CVE-2008-1675)

Reduce your security exposure

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 8.04

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-386,
linux-powerpc, linux-amd64-generic), a standard system upgrade will
automatically perform this as well.

References

Related notices

  • USN-618-1: linux-image-2.6.15-52-amd64-generic, linux-image-2.6.15-52-powerpc64-smp, linux-image-2.6.20-17-hppa64, linux-image-2.6.20-17-server-bigiron, linux-image-2.6.22-15-powerpc-smp, linux-image-2.6.15-52-k7, linux-restricted-modules-2.6.20, linux-image-2.6.15-52-powerpc, linux-image-2.6.20-17-lowlatency, linux-backports-modules-2.6.22, linux-image-2.6.22-15-virtual, linux-source-2.6.22, linux-image-2.6.15-52-amd64-k8, linux-restricted-modules-2.6.22, linux-image-2.6.22-15-cell, linux-image-2.6.22-15-server, linux-backports-modules-2.6.15, linux-image-2.6.15-52-386, linux-image-2.6.22-15-lpiacompat, linux-image-2.6.20-17-powerpc-smp, linux-image-2.6.22-15-powerpc64-smp, linux-image-2.6.22-15-generic, linux-image-2.6.15-52-itanium-smp, linux-backports-modules-2.6.20, linux-image-2.6.15-52-hppa32, linux-image-2.6.20-17-powerpc64-smp, linux-image-2.6.20-17-server, linux-image-2.6.22-15-hppa64, linux-source-2.6.15, linux-image-2.6.15-52-amd64-xeon, linux-image-2.6.20-17-386, linux-image-2.6.20-17-generic, linux-source-2.6.20, linux-image-2.6.20-17-hppa32, linux-image-2.6.20-17-itanium, linux-image-2.6.20-17-mckinley, linux-image-2.6.20-17-powerpc, linux-image-2.6.15-52-686, linux-image-2.6.22-15-mckinley, linux-image-2.6.15-52-sparc64-smp, linux-image-2.6.22-15-sparc64, linux-image-2.6.15-52-hppa32-smp, linux-image-2.6.22-15-hppa32, linux-image-2.6.22-15-sparc64-smp, linux-image-2.6.22-15-rt, linux-image-2.6.22-15-ume, linux-restricted-modules-2.6.15, linux-image-2.6.22-15-lpia, linux-ubuntu-modules-2.6.22, linux-image-2.6.15-52-itanium, linux-image-2.6.15-52-mckinley, linux-image-2.6.15-52-server, linux-image-2.6.22-15-powerpc, linux-image-2.6.20-17-sparc64-smp, linux-image-2.6.15-52-amd64-server, linux-image-2.6.15-52-sparc64, linux-image-2.6.22-15-386, linux-image-2.6.15-52-hppa64, linux-image-2.6.15-52-powerpc-smp, linux-image-2.6.20-17-sparc64, linux-image-2.6.22-15-itanium, linux-image-2.6.15-52-hppa64-smp, linux-image-2.6.15-52-mckinley-smp, linux-image-2.6.15-52-server-bigiron, linux-image-2.6.22-15-xen

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading