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Ubuntu 12.04 LTS USN-3097-2: Kernel Security Advisory and Updates

ubuntu
Calendar Grey October 13, 2016
Scroller Ubuntu
A series of kernel weaknesses repaired in Ubuntu 12.04 LTS tackling service interruptions and security concerns.
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:

Marco Grassi discovered a use-after-free condition could occur in the TCP

retransmit queue handling code in the Linux kernel. A local attacker could

use this to cause a denial of service (system crash) or possibly execute

arbitrary code. (CVE-2016-6828)

Pengfei Wang discovered a race condition in the audit subsystem in the

Linux kernel. A local attacker could use this to corrupt audit logs or

disrupt system-call auditing. (CVE-2016-6136)

Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller

driver in the Linux kernel when handling ioctl()s. A local attacker could

use this to cause a denial of service (system crash). (CVE-2016-6480)

Topics%20covered

Topics Covered

security advisory denial of service kernel attack ubuntu system crash linux-ti-omap4

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1489-omap4    3.2.0-1489.116

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-3097-2

https://ubuntu.com/security/notices/USN-3097-1

CVE-2016-6136, CVE-2016-6480, CVE-2016-6828

Severity
important
Lowest
Low
Medium
High
Critical

October 13, 2016

Topics%20covered

Topics Covered

security advisory denial of service kernel attack ubuntu system crash linux-ti-omap4

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1489.116

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