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[USN-1383-1] Linux kernel (OMAP4) vulnerabilities

Posted on 06 March 2012
Ubuntu Security

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Ubuntu Security Notice USN-1383-1
March 06, 2012

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

- Ubuntu 11.04

Summary:

Several security issues were fixed in the kernel.

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

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)

Dan Rosenberg reported an error in the old ABI compatibility layer of ARM=

kernels. A local attacker could exploit this flaw to cause a denial of
service or gain root privileges. (CVE-2011-1759)

Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM
partitions. A local user could exploit this to cause a denial of service =
or
escalate privileges. (CVE-2011-2182)

The linux kernel did not properly account for PTE pages when deciding whi=
ch
task to kill in out of memory conditions. A local, unprivileged could
exploit this flaw to cause a denial of service. (CVE-2011-2498)

A flaw was discovered in the TOMOYO LSM's handling of mount system calls.=

An unprivileged user could oops the system causing a denial of service.
(CVE-2011-2518)

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 11.04:
linux-image-2.6.38-1209-omap4 2.6.38-1209.22

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

References:
http://www.ubuntu.com/usn/usn-1383-1
CVE-2011-1759, CVE-2011-1927, CVE-2011-2182, CVE-2011-2498,
CVE-2011-2518, CVE-2011-3619

Package Information:
https://launchpad.net/ubuntu/+source/linux-ti-omap4/2.6.38-1209.22


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