CVE-2022-34301

A flaw was found in CryptoPro Secure Disk bootloaders before 2022-06-01. An attacker may use this bootloader to bypass or tamper with Secure Boot protections. In order to load and execute arbitrary code in the pre-boot stage, an attacker simply needs to replace the existing signed bootloader...

Signed third party UEFI bootloaders are vulnerable to Secure Boot bypass

Overview A security feature bypass vulnerability exists in signed 3rd party UEFI bootloaders that allows bypass of the UEFI Secure Boot feature. An attacker who successfully exploits this vulnerability can bypass the UEFI Secure Boot feature and execute unsigned code during the boot process...

PT-2022-4307 · Microsoft +3 · Windows +3

Name of the Vulnerable Software and Affected Versions: Eurosoft bootloaders versions prior to 2022-06-01 Description: A flaw was found in Eurosoft bootloaders that allows an attacker to bypass or tamper with Secure Boot protections. To load and execute arbitrary code in the pre-boot stage, an...

PT-2022-4106

Name of the Vulnerable Software and Affected Versions New Horizon Datasys bootloaders before 2022-06-01 Description A flaw was found in the bootloaders, allowing an attacker to bypass or tamper with Secure Boot protections. To load and execute arbitrary code in the pre-boot stage, an attacker nee...

AZL-34785 CVE-2021-3697 affecting package grub2 for versions less than 2.06-14

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerabili...

AZL-31036 CVE-2021-3697 affecting package grub2 for versions less than 2.06-12

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerabili...

ALPINE-CVE-2021-3697

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerabili...

CVE-2021-3697

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerabili...

UBUNTU-CVE-2021-3697

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerabili...

UBUNTU-CVE-2021-3695

A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an...

UBUNTU-CVE-2021-3696

A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of...

CVE-2022-1665

A set of pre-production kernel packages of Red Hat Enterprise Linux for IBM Power architecture can be booted by the grub in Secure Boot mode even though it shouldn't. These kernel builds don't have the secure boot lockdown patches applied to it and can bypass the secure boot validations, allowing...

IBM Power System 安全漏洞

The IBM Power System is a Power processor-based server computer from IBM in the United States. A security vulnerability exists in the IBM Power System, which arises from a pre-production kernel package that can be bootstrapped by grub in Secure Boot Mode. These kernel builds do not have the Secur...

USN-5484-1 linux 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 It was discovered that a race condition existed in the network...

grub2: Crafted JPEG image can lead to buffer underflow write in the heap

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...

grub2: Crafted JPEG image can lead to buffer underflow write in the heap

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...

grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap

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...

grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap

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...

grub2: Crafted JPEG image can lead to buffer underflow write in the heap

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...

grub2: Crafted JPEG image can lead to buffer underflow write in the heap

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...