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[USN-1499-1] Linux kernel (OMAP4) vulnerability

Posted on 09 July 2012
Ubuntu Security

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Ubuntu Security Notice USN-1499-1
July 09, 2012

linux-ti-omap4 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10

Summary:

The system could be made to crash if it received specially crafted networ=
k
traffic.

Software Description:
- linux-ti-omap4: Linux kernel for OMAP4

Details:

A flaw was discovered in the Linux kernel's NFSv4 (Network file system)
handling of ACLs (access control lists). A remote NFS server (attacker)
could cause a denial of service (OOPS).

Update instructions:

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

Ubuntu 11.10:
linux-image-3.0.0-1212-omap4 3.0.0-1212.24

After a standard system update you need to reboot your computer to make
all 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-generic=
,
linux-server, linux-powerpc), a standard system upgrade will automaticall=
y
perform this as well.

References:
http://www.ubuntu.com/usn/usn-1499-1
CVE-2012-2375

Package Information:
https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.0.0-1212.24


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