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Ubuntu 12.04 ESM: USN-3423-1 Critical: Bluetooth Denial of Service

ubuntu
Calendar Grey September 18, 2017
Dist Ubuntu Esm H88
Ubuntu 12.04 ESM administrators must swiftly mitigate a kernel failure vulnerability caused by malicious Bluetooth packets.
The system could be made to crash if it received specially craftedbluetooth traffic.

Summary

The system could be made to crash if it received specially crafted

bluetooth traffic.

Software Description:

- linux: Linux kernel

Details:

It was discovered that a buffer overflow existed in the Bluetooth stack of

the Linux kernel when handling L2CAP configuration responses. A physically

proximate attacker could use this to cause a denial of service (system

crash).

Topics%20covered

Topics Covered

security advisory denial of service critical kernel ubuntu bluetooth crash

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.2.0-131-generic   3.2.0-131.177
  linux-image-3.2.0-131-generic-pae  3.2.0-131.177
  linux-image-3.2.0-131-highbank  3.2.0-131.177
  linux-image-3.2.0-131-omap      3.2.0-131.177
  linux-image-3.2.0-131-powerpc-smp  3.2.0-131.177
  linux-image-3.2.0-131-powerpc64-smp  3.2.0-131.177
  linux-image-3.2.0-131-virtual   3.2.0-131.177
  linux-image-generic             3.2.0.131.145
  linux-image-generic-pae         3.2.0.131.145
  linux-image-highbank            3.2.0.131.145
  linux-image-omap                3.2.0.131.145
  linux-image-powerpc-smp         3.2.0.131.145
  linux-image-powerpc64-smp       3.2.0.131.145
  linux-image-virtual             3.2.0.131.145

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-3423-1

CVE-2017-1000251

Severity
critical
Lowest
Low
Medium
High
Critical

September 18, 2017

Topics%20covered

Topics Covered

security advisory denial of service critical kernel ubuntu bluetooth crash

Package Information

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