1. Home
  2. Security Advisories
  3. Ubuntu
  4. USN-4425-1

[USN-4425-1] Linux kernel vulnerabilities

Severity Medium
Affected Packages 58
CVEs 4
Info Packages Vulnerabilities

Several security issues were fixed in the Linux kernel.

It was discovered that the network block device (nbd) implementation in the
Linux kernel did not properly check for error conditions in some
situations. An attacker could possibly use this to cause a denial of
service (system crash). (CVE-2019-16089)

It was discovered that the kernel->user space relay implementation in the
Linux kernel did not properly check return values in some situations. A
local attacker could possibly use this to cause a denial of service (system
crash). (CVE-2019-19462)

Mauricio Faria de Oliveira discovered that the aufs implementation in the
Linux kernel improperly managed inode reference counts in the
vfsub_dentry_open() method. A local attacker could use this vulnerability
to cause a denial of service. (CVE-2020-11935)

Jason A. Donenfeld discovered that the ACPI implementation in the Linux
kernel did not properly restrict loading ACPI tables via configfs. A
privileged attacker could use this to bypass Secure Boot lockdown
restrictions and execute arbitrary code in the kernel. (CVE-2020-15780)

Package Affected Version
pkg:deb/ubuntu/linux-image-virtual?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-virtual-hwe-20.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-virtual-hwe-18.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-virtual-hwe-18.04?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-virtual-hwe-18.04-edge?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-virtual-hwe-18.04-edge?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-snapdragon-hwe-18.04?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-snapdragon-hwe-18.04-edge?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-raspi?distro=focal < 5.4.0.1015.50
pkg:deb/ubuntu/linux-image-raspi2?distro=focal < 5.4.0.1015.50
pkg:deb/ubuntu/linux-image-raspi2-hwe-18.04?distro=focal < 5.4.0.1015.50
pkg:deb/ubuntu/linux-image-raspi2-hwe-18.04-edge?distro=focal < 5.4.0.1015.50
pkg:deb/ubuntu/linux-image-raspi-hwe-18.04?distro=focal < 5.4.0.1015.50
pkg:deb/ubuntu/linux-image-raspi-hwe-18.04?distro=bionic < 5.4.0.1015.19
pkg:deb/ubuntu/linux-image-raspi-hwe-18.04-edge?distro=focal < 5.4.0.1015.50
pkg:deb/ubuntu/linux-image-raspi-hwe-18.04-edge?distro=bionic < 5.4.0.1015.19
pkg:deb/ubuntu/linux-image-oracle?distro=focal < 5.4.0.1021.19
pkg:deb/ubuntu/linux-image-oem?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-oem-osp1?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-lowlatency?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-lowlatency-hwe-20.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04-edge?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04-edge?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-kvm?distro=focal < 5.4.0.1020.19
pkg:deb/ubuntu/linux-image-gkeop-5.4?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-gke?distro=focal < 5.4.0.1021.19
pkg:deb/ubuntu/linux-image-generic?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-lpae?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-20.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04-edge?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04-edge?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-generic-hwe-20.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-hwe-18.04?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-hwe-18.04?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-generic-hwe-18.04-edge?distro=focal < 5.4.0.42.45
pkg:deb/ubuntu/linux-image-generic-hwe-18.04-edge?distro=bionic < 5.4.0.42.46~18.04.35
pkg:deb/ubuntu/linux-image-gcp?distro=focal < 5.4.0.1021.19
pkg:deb/ubuntu/linux-image-azure?distro=focal < 5.4.0.1022.21
pkg:deb/ubuntu/linux-image-azure-edge?distro=bionic < 5.4.0.1022.6
pkg:deb/ubuntu/linux-image-aws?distro=focal < 5.4.0.1020.21
pkg:deb/ubuntu/linux-image-5.4.0-42-lowlatency?distro=focal < 5.4.0-42.46
pkg:deb/ubuntu/linux-image-5.4.0-42-lowlatency?distro=bionic < 5.4.0-42.46~18.04.1
pkg:deb/ubuntu/linux-image-5.4.0-42-generic?distro=focal < 5.4.0-42.46
pkg:deb/ubuntu/linux-image-5.4.0-42-generic?distro=bionic < 5.4.0-42.46~18.04.1
pkg:deb/ubuntu/linux-image-5.4.0-42-generic-lpae?distro=focal < 5.4.0-42.46
pkg:deb/ubuntu/linux-image-5.4.0-42-generic-lpae?distro=bionic < 5.4.0-42.46~18.04.1
pkg:deb/ubuntu/linux-image-5.4.0-30-generic?distro=focal < 5.4.0-30.34
pkg:deb/ubuntu/linux-image-5.4.0-1022-azure?distro=focal < 5.4.0-1022.22
pkg:deb/ubuntu/linux-image-5.4.0-1022-azure?distro=bionic < 5.4.0-1022.22~18.04.1
pkg:deb/ubuntu/linux-image-5.4.0-1021-oracle?distro=focal < 5.4.0-1021.21
pkg:deb/ubuntu/linux-image-5.4.0-1021-gcp?distro=focal < 5.4.0-1021.21
pkg:deb/ubuntu/linux-image-5.4.0-1020-aws?distro=focal < 5.4.0-1020.20
pkg:deb/ubuntu/linux-image-5.4.0-1015-raspi?distro=focal < 5.4.0-1015.15
pkg:deb/ubuntu/linux-image-5.4.0-1015-raspi?distro=bionic < 5.4.0-1015.15~18.04.1
ID
USN-4425-1
Severity
medium
URL
https://ubuntu.com/security/notices/USN-4425-1
Published
2020-07-27T18:08:19
(4 years ago)
Modified
2020-07-27T18:08:19
(4 years ago)
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:deb/ubuntu/linux-image-virtual?distro=focal ubuntu linux-image-virtual < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-20.04?distro=focal ubuntu linux-image-virtual-hwe-20.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-18.04?distro=focal ubuntu linux-image-virtual-hwe-18.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-18.04?distro=bionic ubuntu linux-image-virtual-hwe-18.04 < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-18.04-edge?distro=focal ubuntu linux-image-virtual-hwe-18.04-edge < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-18.04-edge?distro=bionic ubuntu linux-image-virtual-hwe-18.04-edge < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-snapdragon-hwe-18.04?distro=bionic ubuntu linux-image-snapdragon-hwe-18.04 < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-snapdragon-hwe-18.04-edge?distro=bionic ubuntu linux-image-snapdragon-hwe-18.04-edge < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-raspi?distro=focal ubuntu linux-image-raspi < 5.4.0.1015.50 focal
Affected pkg:deb/ubuntu/linux-image-raspi2?distro=focal ubuntu linux-image-raspi2 < 5.4.0.1015.50 focal
Affected pkg:deb/ubuntu/linux-image-raspi2-hwe-18.04?distro=focal ubuntu linux-image-raspi2-hwe-18.04 < 5.4.0.1015.50 focal
Affected pkg:deb/ubuntu/linux-image-raspi2-hwe-18.04-edge?distro=focal ubuntu linux-image-raspi2-hwe-18.04-edge < 5.4.0.1015.50 focal
Affected pkg:deb/ubuntu/linux-image-raspi-hwe-18.04?distro=focal ubuntu linux-image-raspi-hwe-18.04 < 5.4.0.1015.50 focal
Affected pkg:deb/ubuntu/linux-image-raspi-hwe-18.04?distro=bionic ubuntu linux-image-raspi-hwe-18.04 < 5.4.0.1015.19 bionic
Affected pkg:deb/ubuntu/linux-image-raspi-hwe-18.04-edge?distro=focal ubuntu linux-image-raspi-hwe-18.04-edge < 5.4.0.1015.50 focal
Affected pkg:deb/ubuntu/linux-image-raspi-hwe-18.04-edge?distro=bionic ubuntu linux-image-raspi-hwe-18.04-edge < 5.4.0.1015.19 bionic
Affected pkg:deb/ubuntu/linux-image-oracle?distro=focal ubuntu linux-image-oracle < 5.4.0.1021.19 focal
Affected pkg:deb/ubuntu/linux-image-oem?distro=focal ubuntu linux-image-oem < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-oem-osp1?distro=focal ubuntu linux-image-oem-osp1 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-lowlatency?distro=focal ubuntu linux-image-lowlatency < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-20.04?distro=focal ubuntu linux-image-lowlatency-hwe-20.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04?distro=focal ubuntu linux-image-lowlatency-hwe-18.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04?distro=bionic ubuntu linux-image-lowlatency-hwe-18.04 < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04-edge?distro=focal ubuntu linux-image-lowlatency-hwe-18.04-edge < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-18.04-edge?distro=bionic ubuntu linux-image-lowlatency-hwe-18.04-edge < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-kvm?distro=focal ubuntu linux-image-kvm < 5.4.0.1020.19 focal
Affected pkg:deb/ubuntu/linux-image-gkeop-5.4?distro=bionic ubuntu linux-image-gkeop-5.4 < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-gke?distro=focal ubuntu linux-image-gke < 5.4.0.1021.19 focal
Affected pkg:deb/ubuntu/linux-image-generic?distro=focal ubuntu linux-image-generic < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-lpae?distro=focal ubuntu linux-image-generic-lpae < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-20.04?distro=focal ubuntu linux-image-generic-lpae-hwe-20.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04?distro=focal ubuntu linux-image-generic-lpae-hwe-18.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04?distro=bionic ubuntu linux-image-generic-lpae-hwe-18.04 < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04-edge?distro=focal ubuntu linux-image-generic-lpae-hwe-18.04-edge < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-18.04-edge?distro=bionic ubuntu linux-image-generic-lpae-hwe-18.04-edge < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-generic-hwe-20.04?distro=focal ubuntu linux-image-generic-hwe-20.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-hwe-18.04?distro=focal ubuntu linux-image-generic-hwe-18.04 < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-hwe-18.04?distro=bionic ubuntu linux-image-generic-hwe-18.04 < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-generic-hwe-18.04-edge?distro=focal ubuntu linux-image-generic-hwe-18.04-edge < 5.4.0.42.45 focal
Affected pkg:deb/ubuntu/linux-image-generic-hwe-18.04-edge?distro=bionic ubuntu linux-image-generic-hwe-18.04-edge < 5.4.0.42.46~18.04.35 bionic
Affected pkg:deb/ubuntu/linux-image-gcp?distro=focal ubuntu linux-image-gcp < 5.4.0.1021.19 focal
Affected pkg:deb/ubuntu/linux-image-azure?distro=focal ubuntu linux-image-azure < 5.4.0.1022.21 focal
Affected pkg:deb/ubuntu/linux-image-azure-edge?distro=bionic ubuntu linux-image-azure-edge < 5.4.0.1022.6 bionic
Affected pkg:deb/ubuntu/linux-image-aws?distro=focal ubuntu linux-image-aws < 5.4.0.1020.21 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-42-lowlatency?distro=focal ubuntu linux-image-5.4.0-42-lowlatency < 5.4.0-42.46 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-42-lowlatency?distro=bionic ubuntu linux-image-5.4.0-42-lowlatency < 5.4.0-42.46~18.04.1 bionic
Affected pkg:deb/ubuntu/linux-image-5.4.0-42-generic?distro=focal ubuntu linux-image-5.4.0-42-generic < 5.4.0-42.46 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-42-generic?distro=bionic ubuntu linux-image-5.4.0-42-generic < 5.4.0-42.46~18.04.1 bionic
Affected pkg:deb/ubuntu/linux-image-5.4.0-42-generic-lpae?distro=focal ubuntu linux-image-5.4.0-42-generic-lpae < 5.4.0-42.46 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-42-generic-lpae?distro=bionic ubuntu linux-image-5.4.0-42-generic-lpae < 5.4.0-42.46~18.04.1 bionic
Affected pkg:deb/ubuntu/linux-image-5.4.0-30-generic?distro=focal ubuntu linux-image-5.4.0-30-generic < 5.4.0-30.34 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-1022-azure?distro=focal ubuntu linux-image-5.4.0-1022-azure < 5.4.0-1022.22 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-1022-azure?distro=bionic ubuntu linux-image-5.4.0-1022-azure < 5.4.0-1022.22~18.04.1 bionic
Affected pkg:deb/ubuntu/linux-image-5.4.0-1021-oracle?distro=focal ubuntu linux-image-5.4.0-1021-oracle < 5.4.0-1021.21 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-1021-gcp?distro=focal ubuntu linux-image-5.4.0-1021-gcp < 5.4.0-1021.21 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-1020-aws?distro=focal ubuntu linux-image-5.4.0-1020-aws < 5.4.0-1020.20 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-1015-raspi?distro=focal ubuntu linux-image-5.4.0-1015-raspi < 5.4.0-1015.15 focal
Affected pkg:deb/ubuntu/linux-image-5.4.0-1015-raspi?distro=bionic ubuntu linux-image-5.4.0-1015-raspi < 5.4.0-1015.15~18.04.1 bionic
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date