February 13, 2024—KB5034769 (OS Build 25398.709)

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February 13, 2024—KB5034766 (OS Build 22000.2777)

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February 13, 2024—KB5034768 (OS Build 17763.5458) - EXPIRED

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KB5034862: Servicing stack update for Windows Server 2016: February 13, 2024

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KB5034868: Servicing stack update for Windows Server 2012: February 13, 2024

KB5034868: Servicing stack update for Windows Server 2012: February 13, 2024 REMINDER Windows Server 2012 reached end of support EOS on October 10, 2023. Extended Security Updates ESUs are available for purchase and will continue for three years, renewable on an annual basis, until the final date...

KB5034864: Servicing stack update for Windows 10: February 13, 2024

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KB5034866: Servicing stack update for Windows Server 2012 R2: February 13, 2024

KB5034866: Servicing stack update for Windows Server 2012 R2: February 13, 2024 REMINDER Windows 8.1 reached end of support EOS on January 10, 2023, at which point technical assistance and software updates are no longer provided. If you have devices running Windows 8.1, we recommend upgrading the...

The vulnerability of the shim_lock component in the Grub2 operating system allows a hacker to break the trust chain of secure loading.

The vulnerability of the shimlock component in the Grub2 operating system is related to the loading of non-atomic files into the secure boot mechanism that supports shim. Exploiting this vulnerability can allow an attacker to break the trust chain of the secure boot mechanism...

Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2024-1141)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2024 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 ifdescription...

EulerOS 2.0 SP5 : grub2 (EulerOS-SA-2024-1141)

According to the versions of the grub2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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...

ROS-20240208-03

Grub loader vulnerability is related to out-of-bounds writes when processing delimited headers HTTP. Exploitation of the vulnerability could allow an attacker acting remotely to cause a denial of denial of service A vulnerability in the grubcmdchainloader function of the Grub operating system...

Critical Boot Loader Vulnerability in Shim Impacts Nearly All Linux Distros

The maintainers of shim have released version 15.8 to address six security flaws, including a critical bug that could pave the way for remote code execution under specific circumstances. Tracked as CVE-2023-40547 CVSS score: 9.8, the vulnerability could be exploited to achieve a Secure Boot bypas...

CVE-2024-1048

A flaw was found in the grub2-set-bootflag utility of grub2. After the fix of CVE-2019-14865, grub2-set-bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv file. If the program is killed before the rename operation, the temporary file will not ...

OESA-2024-1117 shim security update

Initial UEFI bootloader that handles chaining to a trusted full \ bootloader under secure boot environments. Security Fixes: A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker...

OESA-2024-1119 shim security update

Initial UEFI bootloader that handles chaining to a trusted full \ bootloader under secure boot environments. Security Fixes: A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker...

OESA-2024-1120 shim security update

Initial UEFI bootloader that handles chaining to a trusted full \ bootloader under secure boot environments. Security Fixes: A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker...

DEBIAN-CVE-2023-40550

An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase...

CVE-2023-40547 Shim: rce in http boot support may lead to secure boot bypass

A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete...

CVE-2023-40547 Shim: rce in http boot support may lead to secure boot bypass

A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete...

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...