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Ubuntu 12.04 LTS USN-2068-1 Critical: Kernel Flaws and Denial of Service

ubuntu
Calendar Grey January 3, 2014
Scroller Ubuntu
Multiple vulnerabilities addressed in Ubuntu's linux-lts-quantal kernel, potentially enabling unauthorized access, service interruptions, and additional risks.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-quantal: Linux hardware enablement kernel from Quantal

Details:

Dave Jones and Vince Weaver reported a flaw in the Linux kernel's per event

subsystem that allows normal users to enable function tracing. An

unprivileged local user could exploit this flaw to obtain potentially

sensitive information from the kernel. (CVE-2013-2930)

Stephan Mueller reported an error in the Linux kernel's ansi cprng random

number generator. This flaw makes it easier for a local attacker to break

cryptographic protections. (CVE-2013-4345)

Multiple integer overflow flaws were discovered in the Alchemy LCD frame-buffer drivers in the Linux kernel. An unprivileged local user could

exploit this flaw to gain administrative privileges. (CVE-2013-4511)

Nico Golde and Fabian Yamaguchi reported a buffer overflow in the Ozmo

Devices USB over WiFi devices. A local user could exploit this flaw to

cause a d...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue critical patch kernel ubuntu linux-lts-quantal

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.5.0-45-generic    3.5.0-45.68~precise1

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-2068-1

CVE-2013-2930, CVE-2013-4345, CVE-2013-4511, CVE-2013-4513,

CVE-2013-4514, CVE-2013-4515, CVE-2013-6383, CVE-2013-6763,

CVE-2013-7027

Severity
critical
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Low
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Critical

January 03, 2014

Topics%20covered

Topics Covered

security advisory security issue critical patch kernel ubuntu linux-lts-quantal

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-quantal/3.5.0-45.68~precise1

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