edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler()

REJECTED CVE A secure boot bypass vulnerability was found in EDK2 due to the lack of proper return value checks in the GetEfiGlobalVariable2 function. The API may fail if functions like AllocatePool or gRT-GetVariable fail. Without verifying the return value, an attacker could cause the API to...

edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler()

REJECTED CVE A secure boot bypass vulnerability was found in EDK2 due to the lack of proper return value checks in the GetEfiGlobalVariable2 function. The API may fail if functions like AllocatePool or gRT-GetVariable fail. Without verifying the return value, an attacker could cause the API to...

SUSE CVE-2015-5281

The grub2 package before 2.02-0.29 in Red Hat Enterprise Linux RHEL 7, when used on UEFI systems, allows local users to bypass intended Secure Boot restrictions and execute non-verified code via a crafted 1 multiboot or 2 multiboot2 module in the configuration file or physically proximate attacke...

CVE-2022-4575

A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models could allow an attacker with physical or local access and elevated privileges the ability to bypass Secure Boot...

PT-2023-14742 · Lenovo · Thinkpad

Name of the Vulnerable Software and Affected Versions: ThinkPad affected versions not specified Description: A vulnerability due to improper write protection of UEFI variables was reported in the BIOS of some ThinkPad models. This could allow an attacker with physical or local access and elevated...

Lenovo ThinkPad Security Breach

Lenovo ThinkPad is a portable computer from Lenovo, a Chinese company. A security vulnerability exists in the Lenovo ThinkPad that stems from improper write protection of UEFI variables, which could allow an attacker with physical or local access and elevated privileges to bypass secure boot...

CVE-2023-4692

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

AZL-31686 CVE-2023-4692 affecting package grub2 for versions less than 2.06-13

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

DEBIAN-CVE-2023-4692

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

AZL-34795 CVE-2023-4692 affecting package grub2 for versions less than 2.06-18

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

CVE-2023-4692 Grub2: out-of-bounds write at fs/ntfs.c may lead to unsigned code execution

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

AXIS OS Secure Boot Bypass Vulnerability (Oct 2023)

AXIS OS is prone to a secure boot bypass vulnerability on several devices. SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

PT-2023-9359 · Edk2 +3 · Edk2 +3

Name of the Vulnerable Software and Affected Versions: EDK2 versions affected versions not specified Description: The issue is related to an insecure default configuration in EDK2 that allows the UEFI Shell to be enabled, potentially permitting an OS-resident attacker to bypass Secure Boot. This...

CVE-2023-21414

NCC Group has found a flaw during the annual internal penetration test ordered by Axis Communications. The protection for device tampering commonly known as Secure Boot contains a flaw which provides an opportunity for a sophisticated attack to bypass this protection. Axis has released patched AX...

OESA-2023-1720 grub2 security update

GNU GRUB is a Multiboot boot loader. It was derived from GRUB, the GRand Unified Bootloader, which was originally designed and implemented by Erich Stefan Boleyn. Security Fixes: An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a...

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 vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

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SUSE CVE-2023-4692

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

USN-6410-1 grub2-signed, grub2-unsigned vulnerabilities

It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds write. A local attacker could potentially use this to perform arbitrary code execution bypass and bypass secure boot protections. CVE-2023-4692 It was discovered that a specially crafted file syste...

UBUNTU-CVE-2023-4692

An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

PT-2023-6116 · Grub2 +10 · Grub2 +10

Name of the Vulnerable Software and Affected Versions: Grub2 affected versions not specified Description: An out-of-bounds write flaw was found in Grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to Grub's heap metadata...