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Ubuntu: (Multiple Advisories) (CVE-2020-28588): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2020-28588): Linux kernel vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
02/25/2021
Created
03/02/2021
Added
02/26/2021
Modified
03/22/2023

Description

An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.

Solution(s)

  • ubuntu-upgrade-linux-image-5-4-0-1010-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1029-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1033-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1036-gke
  • ubuntu-upgrade-linux-image-5-4-0-1037-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1038-aws
  • ubuntu-upgrade-linux-image-5-4-0-1038-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1040-azure
  • ubuntu-upgrade-linux-image-5-4-0-66-generic
  • ubuntu-upgrade-linux-image-5-4-0-66-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-66-lowlatency
  • ubuntu-upgrade-linux-image-5-6-0-1048-oem
  • ubuntu-upgrade-linux-image-5-8-0-1016-raspi
  • ubuntu-upgrade-linux-image-5-8-0-1016-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-8-0-1019-kvm
  • ubuntu-upgrade-linux-image-5-8-0-1021-oracle
  • ubuntu-upgrade-linux-image-5-8-0-1023-azure
  • ubuntu-upgrade-linux-image-5-8-0-1023-gcp
  • ubuntu-upgrade-linux-image-5-8-0-1024-aws
  • ubuntu-upgrade-linux-image-5-8-0-44-generic
  • ubuntu-upgrade-linux-image-5-8-0-44-generic-64k
  • ubuntu-upgrade-linux-image-5-8-0-44-generic-lpae
  • ubuntu-upgrade-linux-image-5-8-0-44-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04

References

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