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Ubuntu: (Multiple Advisories) (CVE-2017-7482): Linux kernel (Xenial HWE) regression

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Ubuntu: (Multiple Advisories) (CVE-2017-7482): Linux kernel (Xenial HWE) regression

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
08/03/2017
Created
07/25/2018
Added
08/04/2017
Modified
08/25/2021

Description

In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-126-generic
  • ubuntu-upgrade-linux-image-3-13-0-126-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-126-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-126-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-126-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-126-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-126-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-126-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-10-0-1013-raspi2
  • ubuntu-upgrade-linux-image-4-10-0-30-generic
  • ubuntu-upgrade-linux-image-4-10-0-30-generic-lpae
  • ubuntu-upgrade-linux-image-4-10-0-30-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1024-gke
  • ubuntu-upgrade-linux-image-4-4-0-1027-gke
  • ubuntu-upgrade-linux-image-4-4-0-1028-aws
  • ubuntu-upgrade-linux-image-4-4-0-1031-aws
  • ubuntu-upgrade-linux-image-4-4-0-1067-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1069-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-1070-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1072-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-89-generic
  • ubuntu-upgrade-linux-image-4-4-0-89-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-89-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-89-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-89-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-89-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-89-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-4-0-92-generic
  • ubuntu-upgrade-linux-image-4-4-0-92-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-92-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-92-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-92-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-92-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-92-powerpc64-smp
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae-lts-trusty
  • ubuntu-upgrade-linux-image-generic-lpae-lts-xenial
  • ubuntu-upgrade-linux-image-generic-lts-trusty
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc-e500
  • ubuntu-upgrade-linux-image-powerpc-e500mc
  • ubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc-smp
  • ubuntu-upgrade-linux-image-powerpc-smp-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-emb
  • ubuntu-upgrade-linux-image-powerpc64-emb-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-smp
  • ubuntu-upgrade-linux-image-powerpc64-smp-lts-xenial
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon

References

  • USN-3377-1
  • USN-3377-2
  • USN-3378-1
  • USN-3378-2
  • USN-3381-1
  • USN-3381-2
  • USN-3392-1
  • USN-3392-2
  • DSA-3927
  • DSA-3945
  • CVE-2017-7482
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