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Ubuntu: (Multiple Advisories) (CVE-2020-29374): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-29374): Linux kernel vulnerabilities

Severity
3
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:N)
Published
11/28/2020
Created
03/02/2021
Added
02/26/2021
Modified
11/09/2021

Description

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1012-dell300x
  • ubuntu-upgrade-linux-image-4-15-0-1065-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1079-gke
  • ubuntu-upgrade-linux-image-4-15-0-1079-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1085-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1093-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1094-aws
  • ubuntu-upgrade-linux-image-4-15-0-1096-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1108-azure
  • ubuntu-upgrade-linux-image-4-15-0-136-generic
  • ubuntu-upgrade-linux-image-4-15-0-136-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-136-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1086-aws
  • ubuntu-upgrade-linux-image-4-4-0-1088-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1122-aws
  • ubuntu-upgrade-linux-image-4-4-0-1146-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1150-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-203-generic
  • ubuntu-upgrade-linux-image-4-4-0-203-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-203-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-203-powerpc64-smp
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-dell300x
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • 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-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-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • 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-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

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