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[USN-4426-1] Linux kernel vulnerabilities

Severity Medium
Affected Packages 54
CVEs 4
Info Packages Vulnerabilities

Several security issues were fixed in the Linux kernel.

Jason A. Donenfeld discovered that the ACPI implementation in the Linux
kernel did not properly restrict loading SSDT code from an EFI variable. A
privileged attacker could use this to bypass Secure Boot lockdown
restrictions and execute arbitrary code in the kernel. (CVE-2019-20908)

Fan Yang discovered that the mremap implementation in the Linux kernel did
not properly handle DAX Huge Pages. A local attacker with access to DAX
storage could use this to gain administrative privileges. (CVE-2020-10757)

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=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-virtual-hwe-16.04?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-virtual-hwe-16.04?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-virtual-hwe-16.04-edge?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-virtual-hwe-16.04-edge?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-raspi2?distro=bionic < 4.15.0.1067.65
pkg:deb/ubuntu/linux-image-oracle?distro=xenial < 4.15.0.1050.41
pkg:deb/ubuntu/linux-image-oracle-lts-18.04?distro=bionic < 4.15.0.1050.59
pkg:deb/ubuntu/linux-image-oem?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-oem?distro=bionic < 4.15.0.1093.96
pkg:deb/ubuntu/linux-image-lowlatency?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04-edge?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04-edge?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-kvm?distro=bionic < 4.15.0.1071.67
pkg:deb/ubuntu/linux-image-gke?distro=xenial < 4.15.0.1080.82
pkg:deb/ubuntu/linux-image-gke?distro=bionic < 4.15.0.1066.68
pkg:deb/ubuntu/linux-image-gke-4.15?distro=bionic < 4.15.0.1066.68
pkg:deb/ubuntu/linux-image-generic?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-generic-lpae?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04-edge?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04-edge?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-generic-hwe-16.04?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-generic-hwe-16.04?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-generic-hwe-16.04-edge?distro=xenial < 4.15.0.112.114
pkg:deb/ubuntu/linux-image-generic-hwe-16.04-edge?distro=bionic < 4.15.0.112.100
pkg:deb/ubuntu/linux-image-gcp?distro=xenial < 4.15.0.1080.82
pkg:deb/ubuntu/linux-image-gcp-lts-18.04?distro=bionic < 4.15.0.1080.96
pkg:deb/ubuntu/linux-image-azure?distro=xenial < 4.15.0.1092.87
pkg:deb/ubuntu/linux-image-azure-lts-18.04?distro=bionic < 4.15.0.1092.63
pkg:deb/ubuntu/linux-image-azure-edge?distro=xenial < 4.15.0.1092.87
pkg:deb/ubuntu/linux-image-aws-lts-18.04?distro=bionic < 4.15.0.1079.81
pkg:deb/ubuntu/linux-image-aws-hwe?distro=xenial < 4.15.0.1079.76
pkg:deb/ubuntu/linux-image-4.15.0-112-lowlatency?distro=xenial < 4.15.0-112.113~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-112-lowlatency?distro=bionic < 4.15.0-112.113
pkg:deb/ubuntu/linux-image-4.15.0-112-generic?distro=xenial < 4.15.0-112.113~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-112-generic?distro=bionic < 4.15.0-112.113
pkg:deb/ubuntu/linux-image-4.15.0-112-generic-lpae?distro=xenial < 4.15.0-112.113~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-112-generic-lpae?distro=bionic < 4.15.0-112.113
pkg:deb/ubuntu/linux-image-4.15.0-1093-oem?distro=bionic < 4.15.0-1093.103
pkg:deb/ubuntu/linux-image-4.15.0-1092-azure?distro=xenial < 4.15.0-1092.102~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-1092-azure?distro=bionic < 4.15.0-1092.102
pkg:deb/ubuntu/linux-image-4.15.0-1080-gcp?distro=xenial < 4.15.0-1080.90~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-1080-gcp?distro=bionic < 4.15.0-1080.90
pkg:deb/ubuntu/linux-image-4.15.0-1079-aws?distro=xenial < 4.15.0-1079.83~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-1079-aws?distro=bionic < 4.15.0-1079.83
pkg:deb/ubuntu/linux-image-4.15.0-1071-kvm?distro=bionic < 4.15.0-1071.72
pkg:deb/ubuntu/linux-image-4.15.0-1067-raspi2?distro=bionic < 4.15.0-1067.71
pkg:deb/ubuntu/linux-image-4.15.0-1066-gke?distro=bionic < 4.15.0-1066.69
pkg:deb/ubuntu/linux-image-4.15.0-1050-oracle?distro=xenial < 4.15.0-1050.54~16.04.1
pkg:deb/ubuntu/linux-image-4.15.0-1050-oracle?distro=bionic < 4.15.0-1050.54
ID
USN-4426-1
Severity
medium
URL
https://ubuntu.com/security/notices/USN-4426-1
Published
2020-07-27T22:46:40
(4 years ago)
Modified
2020-07-27T22:46:40
(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=bionic ubuntu linux-image-virtual < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-16.04?distro=xenial ubuntu linux-image-virtual-hwe-16.04 < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-16.04?distro=bionic ubuntu linux-image-virtual-hwe-16.04 < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-16.04-edge?distro=xenial ubuntu linux-image-virtual-hwe-16.04-edge < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-virtual-hwe-16.04-edge?distro=bionic ubuntu linux-image-virtual-hwe-16.04-edge < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-raspi2?distro=bionic ubuntu linux-image-raspi2 < 4.15.0.1067.65 bionic
Affected pkg:deb/ubuntu/linux-image-oracle?distro=xenial ubuntu linux-image-oracle < 4.15.0.1050.41 xenial
Affected pkg:deb/ubuntu/linux-image-oracle-lts-18.04?distro=bionic ubuntu linux-image-oracle-lts-18.04 < 4.15.0.1050.59 bionic
Affected pkg:deb/ubuntu/linux-image-oem?distro=xenial ubuntu linux-image-oem < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-oem?distro=bionic ubuntu linux-image-oem < 4.15.0.1093.96 bionic
Affected pkg:deb/ubuntu/linux-image-lowlatency?distro=bionic ubuntu linux-image-lowlatency < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04?distro=xenial ubuntu linux-image-lowlatency-hwe-16.04 < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04?distro=bionic ubuntu linux-image-lowlatency-hwe-16.04 < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04-edge?distro=xenial ubuntu linux-image-lowlatency-hwe-16.04-edge < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-lowlatency-hwe-16.04-edge?distro=bionic ubuntu linux-image-lowlatency-hwe-16.04-edge < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-kvm?distro=bionic ubuntu linux-image-kvm < 4.15.0.1071.67 bionic
Affected pkg:deb/ubuntu/linux-image-gke?distro=xenial ubuntu linux-image-gke < 4.15.0.1080.82 xenial
Affected pkg:deb/ubuntu/linux-image-gke?distro=bionic ubuntu linux-image-gke < 4.15.0.1066.68 bionic
Affected pkg:deb/ubuntu/linux-image-gke-4.15?distro=bionic ubuntu linux-image-gke-4.15 < 4.15.0.1066.68 bionic
Affected pkg:deb/ubuntu/linux-image-generic?distro=bionic ubuntu linux-image-generic < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-generic-lpae?distro=bionic ubuntu linux-image-generic-lpae < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04?distro=xenial ubuntu linux-image-generic-lpae-hwe-16.04 < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04?distro=bionic ubuntu linux-image-generic-lpae-hwe-16.04 < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04-edge?distro=xenial ubuntu linux-image-generic-lpae-hwe-16.04-edge < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-generic-lpae-hwe-16.04-edge?distro=bionic ubuntu linux-image-generic-lpae-hwe-16.04-edge < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-generic-hwe-16.04?distro=xenial ubuntu linux-image-generic-hwe-16.04 < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-generic-hwe-16.04?distro=bionic ubuntu linux-image-generic-hwe-16.04 < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-generic-hwe-16.04-edge?distro=xenial ubuntu linux-image-generic-hwe-16.04-edge < 4.15.0.112.114 xenial
Affected pkg:deb/ubuntu/linux-image-generic-hwe-16.04-edge?distro=bionic ubuntu linux-image-generic-hwe-16.04-edge < 4.15.0.112.100 bionic
Affected pkg:deb/ubuntu/linux-image-gcp?distro=xenial ubuntu linux-image-gcp < 4.15.0.1080.82 xenial
Affected pkg:deb/ubuntu/linux-image-gcp-lts-18.04?distro=bionic ubuntu linux-image-gcp-lts-18.04 < 4.15.0.1080.96 bionic
Affected pkg:deb/ubuntu/linux-image-azure?distro=xenial ubuntu linux-image-azure < 4.15.0.1092.87 xenial
Affected pkg:deb/ubuntu/linux-image-azure-lts-18.04?distro=bionic ubuntu linux-image-azure-lts-18.04 < 4.15.0.1092.63 bionic
Affected pkg:deb/ubuntu/linux-image-azure-edge?distro=xenial ubuntu linux-image-azure-edge < 4.15.0.1092.87 xenial
Affected pkg:deb/ubuntu/linux-image-aws-lts-18.04?distro=bionic ubuntu linux-image-aws-lts-18.04 < 4.15.0.1079.81 bionic
Affected pkg:deb/ubuntu/linux-image-aws-hwe?distro=xenial ubuntu linux-image-aws-hwe < 4.15.0.1079.76 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-112-lowlatency?distro=xenial ubuntu linux-image-4.15.0-112-lowlatency < 4.15.0-112.113~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-112-lowlatency?distro=bionic ubuntu linux-image-4.15.0-112-lowlatency < 4.15.0-112.113 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-112-generic?distro=xenial ubuntu linux-image-4.15.0-112-generic < 4.15.0-112.113~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-112-generic?distro=bionic ubuntu linux-image-4.15.0-112-generic < 4.15.0-112.113 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-112-generic-lpae?distro=xenial ubuntu linux-image-4.15.0-112-generic-lpae < 4.15.0-112.113~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-112-generic-lpae?distro=bionic ubuntu linux-image-4.15.0-112-generic-lpae < 4.15.0-112.113 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1093-oem?distro=bionic ubuntu linux-image-4.15.0-1093-oem < 4.15.0-1093.103 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1092-azure?distro=xenial ubuntu linux-image-4.15.0-1092-azure < 4.15.0-1092.102~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-1092-azure?distro=bionic ubuntu linux-image-4.15.0-1092-azure < 4.15.0-1092.102 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1080-gcp?distro=xenial ubuntu linux-image-4.15.0-1080-gcp < 4.15.0-1080.90~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-1080-gcp?distro=bionic ubuntu linux-image-4.15.0-1080-gcp < 4.15.0-1080.90 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1079-aws?distro=xenial ubuntu linux-image-4.15.0-1079-aws < 4.15.0-1079.83~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-1079-aws?distro=bionic ubuntu linux-image-4.15.0-1079-aws < 4.15.0-1079.83 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1071-kvm?distro=bionic ubuntu linux-image-4.15.0-1071-kvm < 4.15.0-1071.72 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1067-raspi2?distro=bionic ubuntu linux-image-4.15.0-1067-raspi2 < 4.15.0-1067.71 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1066-gke?distro=bionic ubuntu linux-image-4.15.0-1066-gke < 4.15.0-1066.69 bionic
Affected pkg:deb/ubuntu/linux-image-4.15.0-1050-oracle?distro=xenial ubuntu linux-image-4.15.0-1050-oracle < 4.15.0-1050.54~16.04.1 xenial
Affected pkg:deb/ubuntu/linux-image-4.15.0-1050-oracle?distro=bionic ubuntu linux-image-4.15.0-1050-oracle < 4.15.0-1050.54 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