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Ubuntu: USN-4284-1 (CVE-2019-19602): Linux kernel vulnerabilities

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Ubuntu: USN-4284-1 (CVE-2019-19602): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:C/I:N/A:P)
Published
12/05/2019
Created
02/20/2020
Added
02/19/2020
Modified
04/14/2021

Description

fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.

Solution(s)

  • ubuntu-upgrade-linux-image-5-3-0-1009-oracle
  • ubuntu-upgrade-linux-image-5-3-0-1010-kvm
  • ubuntu-upgrade-linux-image-5-3-0-1011-aws
  • ubuntu-upgrade-linux-image-5-3-0-1012-gcp
  • ubuntu-upgrade-linux-image-5-3-0-1013-azure
  • ubuntu-upgrade-linux-image-5-3-0-1018-raspi2
  • ubuntu-upgrade-linux-image-5-3-0-40-generic
  • ubuntu-upgrade-linux-image-5-3-0-40-generic-lpae
  • ubuntu-upgrade-linux-image-5-3-0-40-lowlatency
  • ubuntu-upgrade-linux-image-5-3-0-40-snapdragon
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-edge
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-edge
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-raspi2-hwe-18-04
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04

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