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USN-2619-1: Linux kernel (Trusty HWE) vulnerability

23 May 2015

The system could be made to crash under certain conditions.

Releases

Packages

Details

A flaw was discovered in the Linux kernel's IPv4 networking when using TCP
fast open to initiate a connection. An unprivileged local user could
exploit this flaw to cause a denial of service (system crash).

Update instructions

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

Ubuntu 12.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

Related notices

  • USN-2616-1: linux-image-3.16.0-38-powerpc64-smp, linux-image-3.16.0-38-powerpc64-emb, linux-image-3.16.0-38-generic, linux, linux-image-3.16.0-38-lowlatency, linux-image-3.16.0-38-generic-lpae, linux-image-3.16.0-38-powerpc-smp, linux-image-3.16.0-38-powerpc-e500mc
  • USN-2620-1: linux-image-3.13.0-53-powerpc64-smp, linux-image-3.13.0-53-generic-lpae, linux-image-3.13.0-53-powerpc64-emb, linux, linux-image-3.13.0-53-powerpc-e500mc, linux-image-extra-3.13.0-53-generic, linux-image-3.13.0-53-powerpc-e500, linux-image-3.13.0-53-lowlatency, linux-image-3.13.0-53-generic, linux-image-3.13.0-53-powerpc-smp
  • USN-2615-1: linux-image-3.16.0-38-powerpc64-smp, linux-image-3.16.0-38-powerpc64-emb, linux-image-3.16.0-38-generic, linux-image-3.16.0-38-lowlatency, linux-lts-utopic, linux-image-extra-3.16.0-38-generic, linux-image-3.16.0-38-generic-lpae, linux-image-3.16.0-38-powerpc-smp, linux-image-3.16.0-38-powerpc-e500mc