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[USN-1379-1] Linux kernel vulnerabilities

Posted on 29 February 2012
Ubuntu Security

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Ubuntu Security Notice USN-1379-1
February 28, 2012

linux vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.10

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel'=
s
handling of IPv4 icmp packets. A remote user could exploit this to cause =
a
denial of service. (CVE-2011-1927)

A flaw was found in the Linux Ethernet bridge's handling of IGMP (Interne=
t
Group Management Protocol) packets. An unprivileged local user could
exploit this flaw to crash the system. (CVE-2011-0716)

A flaw was discovered in the Linux kernel's AppArmor security interface
when invalid information was written to it. An unprivileged local user
could use this to cause a denial of service on the system. (CVE-2011-3619=
)

Update instructions:

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

Ubuntu 10.10:
linux-image-2.6.35-32-generic 2.6.35-32.66
linux-image-2.6.35-32-generic-pae 2.6.35-32.66
linux-image-2.6.35-32-omap 2.6.35-32.66
linux-image-2.6.35-32-powerpc 2.6.35-32.66
linux-image-2.6.35-32-powerpc-smp 2.6.35-32.66
linux-image-2.6.35-32-powerpc64-smp 2.6.35-32.66
linux-image-2.6.35-32-server 2.6.35-32.66
linux-image-2.6.35-32-versatile 2.6.35-32.66
linux-image-2.6.35-32-virtual 2.6.35-32.66

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1379-1
CVE-2011-0716, CVE-2011-1927, CVE-2011-3619

Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.35-32.66


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