kernel: lockdown: bypass through ACPI write via efivar_ssdt

A flaw was found in how the ACPI table loading through the EFI variable and the related efivarssdt boot option was handled when the Linux kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerabilit...

kernel: lockdown: bypass through ACPI write via efivar_ssdt

A flaw was found in how the ACPI table loading through the EFI variable and the related efivarssdt boot option was handled when the Linux kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerabilit...

kernel: lockdown: bypass through ACPI write via acpi_configfs

A flaw was found in how the ACPI table loading through acpiconfigfs was handled when the kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerability is to data confidentiality and integrity as wel...

Unbreakable Enterprise kernel security update

5.4.17-2011.4.6.el8uek - Revert 'uek-rpm: Move grub boot menu update to posttrans stage.' Somasundaram Krishnasamy Orabug: 31358097 5.4.17-2011.4.5.el8uek - IB/sa: Resolv use-after-free in ibnlmakerequest Divya Indi Orabug: 31631527 - certs: Remove Oracle cert compiled into the kernel Eric Snowbe...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4439-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4439-1 advisory. 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...

USN-4425-1 linux, linux-aws, linux-azure, linux-azure-5.4, linux-gcp, linux-hwe-5.4, linux-kvm, linux-oracle, linux-raspi, linux-raspi-5.4, linux-riscv vulnerabilities

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...

Linux kernel lockdown and secure boot restriction bypass vulnerability

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the drivers/acpi/acpiconfigfs.c file in Linux kernel versions prior to 5.7.7. An attacker can exploit this vulnerability by injectin...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4425-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4425-1 advisory. It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some...

CVE-2020-15780

A flaw was found in how the ACPI table loading through acpiconfigfs was handled when the kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerability is to data confidentiality and integrity as wel...

CVE-2019-20908

A flaw was found in how the ACPI table loading through the EFI variable and the related efivarssdt boot option was handled when the Linux kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerabilit...

CVE-2020-15780

An issue was discovered in drivers/acpi/acpiconfigfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30...

DEBIAN-CVE-2020-15780

An issue was discovered in drivers/acpi/acpiconfigfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30...

DEBIAN-CVE-2019-20908

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivarssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032...

CVE-2019-20908

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivarssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032...

UBUNTU-CVE-2019-20908

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivarssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032...

UBUNTU-CVE-2020-15780

An issue was discovered in drivers/acpi/acpiconfigfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30...

Code injection

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivarssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032...

CVE-2020-15780

CVE-2020-15780 – Linux kernel configfs ACPI lockdown bypass Affects: Linux kernel drivers/acpi/acpi_configfs.c prior to 5.7.7 (observed in Unity Linux advisories). Impact: Injection of malicious ACPI tables via configfs could bypass lockdown and secure boot protections. Local attacker privileges ...

CVE-2020-12389

The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. Note: this issue only affects Firefox on Windows operating systems.. This vulnerability affects Firefox ESR 68.8 and Firefox 76...

Design/Logic Flaw

The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. Note: this issue only affects Firefox on Windows operating systems.. This vulnerability affects Firefox ESR 68.8 and Firefox 76...