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USN-2318-1: Linux kernel vulnerabilities

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USN-2318-1: Linux kernel vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
08/18/2014
Created
07/25/2018
Added
08/19/2014
Modified
07/09/2020

Description

The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-34-generic
  • ubuntu-upgrade-linux-image-3-13-0-34-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-34-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-34-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-34-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-34-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-34-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-34-powerpc64-smp

References

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