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USN-2620-1: Linux kernel vulnerability

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USN-2620-1: Linux kernel vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
05/23/2015
Created
07/25/2018
Added
05/25/2015
Modified
07/09/2020

Description

A certain backport in the TCP Fast Open implementation for the Linux kernel before 3.18 does not properly maintain a count value, which allow local users to cause a denial of service (system crash) via the Fast Open feature, as demonstrated by visiting the chrome://flags/#enable-tcp-fast-open URL when using certain 3.10.x through 3.16.x kernel builds, including longterm-maintenance releases and ckt (aka Canonical Kernel Team) builds.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-53-generic
  • ubuntu-upgrade-linux-image-3-13-0-53-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-53-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-53-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-53-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-53-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-53-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-53-powerpc64-smp

References

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