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Ubuntu 10.04 LTS USN-1940-1 Critical: Kernel Security Flaws & Fixes

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Calendar Grey September 6, 2013
Scroller Ubuntu
Multiple kernel security flaws fixed in Ubuntu 12.04 LTS. Ensure to update your system for improved protection and performance.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-ec2: Linux kernel for EC2

Details:

Vasily Kulikov discovered a flaw in the Linux Kernel's perf tool that

allows for privilege escalation. A local user could exploit this flaw to

run commands as root when using the perf tool. (CVE-2013-1060)

Michael S. Tsirkin discovered a flaw in how the Linux kernel's KVM

subsystem allocates memory slots for the guest's address space. A local

user could exploit this flaw to gain system privileges or obtain sensitive

information from kernel memory. (CVE-2013-1943)

A flaw was discovered in the SCTP (stream control transfer protocol)

network protocol's handling of duplicate cookies in the Linux kernel. A

remote attacker could exploit this flaw to cause a denial of service

(system crash) on another remote user querying the SCTP connection.

(CVE-2013-2206)

Hannes Frederic Sowa discovered a flaw in setsockopt UDP_CORK option in the

Linux kernel'...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service privilege escalation Ubuntu system update kernel issue

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-356-ec2      2.6.32-356.69

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 automatically
perform this as well.

References

https://ubuntu.com/security/notices/USN-1940-1

CVE-2013-1060, CVE-2013-1943, CVE-2013-2206, CVE-2013-4162

Severity
critical
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Critical

September 06, 2013

Topics%20covered

Topics Covered

security advisory denial of service privilege escalation Ubuntu system update kernel issue

Package Information

https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-356.69

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