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Ubuntu 12.04 LTS: USN-3072-2 Moderate: Multiple Kernel Issues

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Calendar Grey August 29, 2016
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Ubuntu 12.04 LTS kernel enhancements address various vulnerabilities, including denial of service threats and data leakage concerns on OMAP4 devices.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-ti-omap4: Linux kernel for OMAP4

Details:

Kangjie Lu discovered an information leak in the Reliable Datagram Sockets

(RDS) implementation in the Linux kernel. A local attacker could use this

to obtain potentially sensitive information from kernel memory.

(CVE-2016-5244)

Yue Cao et al discovered a flaw in the TCP implementation's handling of

challenge acks in the Linux kernel. A remote attacker could use this to

cause a denial of service (reset connection) or inject content into an TCP

stream. (CVE-2016-5696)

It was discovered that a heap based buffer overflow existed in the USB HID

driver in the Linux kernel. A local attacker could use this cause a denial

of service (system crash) or possibly execute arbitrary code.

(CVE-2016-5829)

Topics%20covered

Topics Covered

security advisory denial of service information leak heap overflow ubuntu linux kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1487-omap4    3.2.0-1487.114

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-3072-2

https://ubuntu.com/security/notices/USN-3072-1

CVE-2016-5244, CVE-2016-5696, CVE-2016-5829

August 29, 2016

Topics%20covered

Topics Covered

security advisory denial of service information leak heap overflow ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1487.114

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