Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2021-1601)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2021 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...

A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents using a 1kB stack buffer for temporary storage without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload it is possible to overflow the stack buffer corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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EulerOS Virtualization 2.9.1 : grub2 (EulerOS-SA-2021-1601)

According to the versions of the grub2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification...

grub2 resource management error vulnerability (CNVD-2021-16929)

grub2 is a Linux system boot program from the GNU community. A resource management error vulnerability exists in grub2 versions prior to 2.06, which stems from the rmmod command. No details of the vulnerability are provided at this time...

NewStart CGSL CORE 5.04 / MAIN 5.04 : shim Vulnerability (NS-SA-2021-0009)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has shim packages installed that are affected by a vulnerability: - A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows...

grub2 buffer overflow vulnerability (CNVD-2021-16927)

grub2 is a Linux system boot program from the GNU community. A security vulnerability exists in grub2 versions prior to 2.06 which identifies a stack buffer overflow vulnerability in grubparsersplitcmdline. No details of the vulnerability are provided at this time...

grub2 buffer overflow vulnerability (CNVD-2021-16926)

grub2 is a Linux system boot program from the GNU community. A buffer overflow vulnerability exists in grub2 versions prior to 2.06, which stems from a heap out-of-bounds write vulnerability discovered in shortened form. No details of the vulnerability are provided at this time...

grub2 buffer overflow vulnerability (CNVD-2021-16928)

grub2 is a Linux system boot program from the GNU community. A buffer overflow vulnerability exists in grub2 versions prior to 2.06 in the grubusbdeviceinitialize function, which handles USB device initialization. No details of the vulnerability are provided at this time...

NewStart CGSL CORE 5.04 / MAIN 5.04 : grub2 Multiple Vulnerabilities (NS-SA-2021-0008)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has grub2 packages installed that are affected by multiple vulnerabilities: - A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw...

grub2 code execution vulnerability

grub2 is a Linux system boot program from the GNU community. A security vulnerability exists in versions of grub2 prior to 2.06 where it incorrectly enables the ACPI command when enabling secure boot. The vulnerability allows an attacker with privileged access to create an auxiliary system...

Vulnerabilities fixed in GRUB2

Vulnerabilities have been fixed in GRUB2. The vulnerabilities allow a local malicious person to execute arbitrary code resulting in the circumvention of "Secure Boot." Also, the vulnerabilities can be used to cause a denial-of-service cause. With the exception of the vulnerability with attribute...

grub2 security update

2.02-90.0.2.el83.1 - Fix various coverity issues Orabug: 32530657 - Add SBAT metadata to grubx64.efi Orabug: 32530657 - Set proper blsdir if /boot is on btrfs rootfs Orabug: 32063327 - Add CVE-2020-15706, CVE-2020-15707 to the list Orabug: 31225072 - Update signing certificate for efi binaries -...

grub2 authorization issue vulnerability

grub2 is a Linux system boot program from the GNU community. A security vulnerability in versions of grub2 prior to 2.06, where the cutmem command does not support secure boot locking, allows a privileged attacker to remove address ranges from memory, thus giving the opportunity to bypass secure...

grub2 buffer overflow vulnerability (CNVD-2021-16935)

grub2 is a Linux system boot program from the GNU community. A security vulnerability exists in versions of grub2 prior to 2.06. Setparamprefix in the menu presentation code performs length calculations based on the premise that it takes three characters to represent a single quote with a quotati...

Oracle Linux 8 : grub2 (ELSA-2021-0696)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-0696 advisory. - Add CVE-2020-15706, CVE-2020-15707 to the list Orabug: 31225072 Tenable has extracted the preceding description block directly from the Oracle Linux...

Oracle Linux 7 : grub2 (ELSA-2021-0699)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-0699 advisory. - Fix another batch of CVEs Resolves: CVE-2020-14372 Resolves: CVE-2020-25632 Resolves: CVE-2020-25647 Resolves: CVE-2020-27749 Resolves: CVE-2020-2777...

Scientific Linux Security Update : grub2 on SL7.x x86_64 (2021:0699)

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2021:0699-1 advisory. - grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled CVE-2020-14372 - grub2: Use-after-free in...

CVE-2021-20233

A flaw was found in grub2 in versions prior to 2.06. Setparamprefix in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one...

CVE-2021-20233

A flaw was found in grub2 in versions prior to 2.06. Setparamprefix in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one...

AZL-78305 CVE-2021-20233 affecting package grub2 for versions less than 2.06-26

A flaw was found in grub2 in versions prior to 2.06. Setparamprefix in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one...