RLSA-2022:5095 Important: grub2, mokutil, shim, and shim-unsigned-x64 security update

The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a...

Denial Of Service (DoS)

grub2 is vulnerable to denial of service. The vulnerability exists due to out-of-bounds write when handling split HTTP headers which allows an attacker to crash the application via malicious input...

Authentication Bypass

grub2 is vulnerable to authentication bypass. The vulnerability exists because the shimlock verifier allows non-kernel files to be loaded on shim-powered secure boot systems, allowing an attacker to load unverified modules into GRUB and bypass secure boot protection mechanism...

Denial Of Service (DoS)

grub2 is vulnerable to denial of service. The vulnerability exists due to an integer underflow triggering when handling IPv4 packets which allows an attacker to cause an application crash...

Remote Code Execution (RCE)

grub2 is vulnerable to remote code execution. The vulnerability exists due to a use-after-free vulnerability in grubcmdchainloader function which allows an attacker to gain access to restricted data...

RHEL 8 : grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5096)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5096 advisory. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular...

RHEL 8 : grub2, mokutil, and shim (RHSA-2022:5098)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5098 advisory. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular...

Important: grub2, mokutil, shim, and shim-unsigned-x64 security update

The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a...

ALSA-2022:5099 Important: grub2, mokutil, shim, and shim-unsigned-x64 security update

The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a...

RHEL 8 : grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5095)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5095 advisory. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular...

RHEL 9 : grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5099)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5099 advisory. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular...

Important: grub2, mokutil, shim, and shim-unsigned-x64 security update

The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a...

ALSA-2022:5095 Important: grub2, mokutil, shim, and shim-unsigned-x64 security update

The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a...

RHEL 8 : grub2, mokutil, shim, and shim-unsigned-x64 (RHSA-2022:5100)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5100 advisory. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular...

Remote Code Execution (RCE)

grub2 is vulnerable to remote code execution. The vulnerability exists due to a heap out-of-bounds write that happen during the handling of Huffman tables in the PNG reader allowing an attacker to inject malicious code into the system via a crafted PNG image...

Remote Code Execution (RCE)

grub2 is vulnerable to remote code execution. The vulnerability exists due to an out-of-bounds write in the heap area allowing an attacker to inject maliciously crafted script into the system via a crafted 16-bit grayscale PNG image which allows an attacker to inject malicious codes...

Remote Code Execution (RCE)

grub2 is vulnerable to remote code execution. The vulnerability exists due to a lack of sanitization of the data pointer of the JPEG reader allowing an attacker to inject maliciously crafted script into the system via a crafted JPEG image...

SUSE SLES15 Security Update : grub2 (SUSE-SU-2022:2074-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2074-1 advisory. - 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 t...

SUSE: Security Advisory (SUSE-SU-2022:2074-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...

SUSE-SU-2022:2074-1 Security update for grub2

This update for grub2 fixes the following issues: Security fixes and hardenings for boothole 3 / boothole 2022 bsc1198581 - CVE-2021-3695: Fixed that a crafted PNG grayscale image could lead to out-of-bounds write in heap bsc1191184 - CVE-2021-3696: Fixed that a crafted PNG image could lead to...