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Ubuntu: (Multiple Advisories) (CVE-2019-11479): Linux kernel update

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Ubuntu: (Multiple Advisories) (CVE-2019-11479): Linux kernel update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
06/17/2019
Created
07/03/2019
Added
06/29/2019
Modified
03/22/2023

Description

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1017-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1036-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1036-gke
  • ubuntu-upgrade-linux-image-4-15-0-1038-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1040-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1043-aws
  • ubuntu-upgrade-linux-image-4-15-0-1045-oem
  • ubuntu-upgrade-linux-image-4-15-0-1049-azure
  • ubuntu-upgrade-linux-image-4-15-0-1057-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-54-generic
  • ubuntu-upgrade-linux-image-4-15-0-54-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-54-lowlatency
  • ubuntu-upgrade-linux-image-4-18-0-1015-gcp
  • ubuntu-upgrade-linux-image-4-18-0-1016-kvm
  • ubuntu-upgrade-linux-image-4-18-0-1018-raspi2
  • ubuntu-upgrade-linux-image-4-18-0-1020-aws
  • ubuntu-upgrade-linux-image-4-18-0-1023-azure
  • ubuntu-upgrade-linux-image-4-18-0-25-generic
  • ubuntu-upgrade-linux-image-4-18-0-25-generic-lpae
  • ubuntu-upgrade-linux-image-4-18-0-25-lowlatency
  • ubuntu-upgrade-linux-image-4-18-0-25-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-1048-aws
  • ubuntu-upgrade-linux-image-4-4-0-1051-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1087-aws
  • ubuntu-upgrade-linux-image-4-4-0-1114-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1118-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-154-generic
  • ubuntu-upgrade-linux-image-4-4-0-154-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-154-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-154-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-154-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-154-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-154-powerpc64-smp
  • ubuntu-upgrade-linux-image-5-0-0-1010-aws
  • ubuntu-upgrade-linux-image-5-0-0-1010-azure
  • ubuntu-upgrade-linux-image-5-0-0-1010-gcp
  • ubuntu-upgrade-linux-image-5-0-0-1010-kvm
  • ubuntu-upgrade-linux-image-5-0-0-1012-raspi2
  • ubuntu-upgrade-linux-image-5-0-0-1016-snapdragon
  • ubuntu-upgrade-linux-image-5-0-0-20-generic
  • ubuntu-upgrade-linux-image-5-0-0-20-generic-lpae
  • ubuntu-upgrade-linux-image-5-0-0-20-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-lts-xenial
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-4-15
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oracle
  • 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
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

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