USN-5469-1 linux, linux-aws, linux-azure, linux-gcp, linux-gke, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

USN-5468-1 linux, linux-aws, linux-aws-5.13, linux-azure, linux-azure-5.13, linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-intel-5.13, linux-kvm, linux-oracle, linux-oracle-5.13, linux-raspi vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

USN-5468-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

USN-5467-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-azure-fde, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

USN-5466-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

USN-5465-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

USN-5465-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. CVE-2022-21499 Aaron Adams discovered that the netfilter subsystem in the Linux...

Das U-Boot 缓冲区错误漏洞

Das U-Boot is a boot loader program mainly for embedded systems. The program supports many different computer system architectures such as PPC, ARM, AVR32, MIPS, x86, 68k, Nios and MicroBlaze. A security vulnerability exists in Das U-Boot 2022.01 and earlier versions, which stems from the...

The vulnerability of the CONFIG_IP_DEFRAG function in the implementation of the IP packet defragmentation algorithm for U-Boot bootloaders of embedded Linux-based operating systems allows a hacker to cause a service failure.

The vulnerability of the CONFIGIPDEFRAG function in the implementation of the IP packet defragmentation algorithm for U-Boot bootloaders of embedded Linux operating systems is related to the execution of operations outside the buffer in memory. Exploiting this vulnerability can allow a malicious...

Das U-Boot 缓冲区错误漏洞

Das U-Boot is a boot loader program mainly for embedded systems. The program supports many different computer system architectures such as PPC, ARM, AVR32, MIPS, x86, 68k, Nios and MicroBlaze. A security vulnerability exists in Das U-Boot versions prior to 2022.01, which stems from U-Boot's...

CVE-2022-28735

A flaw was found in grub2. The shimlock verifier from grub2 allows non-kernel files to be loaded when secure boot is enabled, giving the possibility of unverified code or modules to be loaded when it should not be allowed...

CVE-2021-3695

A flaw was found in grub 2, where a crafted 16-bit grayscale PNG image may lead to an out-of-bounds write. This flaw allows an attacker to corrupt the data on the heap portion of the grub2's memory, leading to possible code execution and the circumvention of the secure boot mechanism...

CVE-2021-3697

A flaw was found in grub2 when handling JPEG images. This flaw allows an attacker to craft a malicious JPEG image, which leads to an underflow on a grub2's internal pointer, leading to a heap-based out-of-bounds write. Secure-boot mechanisms circumvention and arbitrary code execution may also be...

This Week in Spring - June 7th, 2022

Hi, Spring fans! Welcome to another installment of This Week in Spring! Ive just landed in tantalizing Toronto, Canada, for the SpringOne Tour Toronto show. Im so excited to be here, at long last, after so long away from one of my favorite countries. Ill be doing two talks - my usual, Kubernetes...

Qualcomm 芯片安全漏洞

A Qualcomm chip is a chip from Qualcomm Incorporated USA. A way to miniaturize circuits mainly semiconductor devices, but also passive components, etc., and is from time to time fabricated on the surface of semiconductor wafers. A security vulnerability exists in a number of Qualcomm products tha...

grub2 资源管理错误漏洞

grub2 is a Linux system boot program from the American GNU community. A resource management error vulnerability exists in grub2 that stems from reuse after release in grubcmdchainloader...

Oracle Linux 7 : grub2 (ELSA-2022-9469)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9469 advisory. - Add CVE-2022-28736 to the list JIRA: OLDIS-16371 - Fix: CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735...

grub2 缓冲区错误漏洞

grub2 is a Linux system boot program from the US GNU community. A buffer error vulnerability exists in grub2 that stems from an out-of-bounds write when handling split HTTP headers...

grub2 数据伪造问题漏洞

grub2 is a Linux system boot program from the US GNU community. A data forgery issue vulnerability exists in grub2 that stems from the shimlock validator allowing non-kernel files to be loaded...

PT-2022-6168

Name of the Vulnerable Software and Affected Versions grub2 versions prior to 2.12 Description A crafted 16-bit grayscale PNG image may lead to an out-of-bounds write in the heap area, potentially causing heap data corruption or arbitrary code execution, and circumventing secure boot protections...