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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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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).

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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