Amazon Linux 2 : grub2 (ALAS-2025-2844)

The version of grub2 installed on the remote host is prior to 2.06-14. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2844 advisory. When reading the language .mo file in grubmofileopen, grub2 fails to verify an integer overflow when allocating its internal...

GNU GRUB Buffer Overflow Vulnerability

GNU GRUB is a Linux system boot program from the GNU community. GNU GRUB suffers from a buffer overflow vulnerability, which stems from an integer overflow problem contained in the read module, that can be exploited by an attacker to overwrite sensitive information, thereby bypassing secure boot...

grub2 security update

2.02-164.0.2 - fs/ext2: Rework out-of-bounds read for inline and external extents Orabug: 37829911 2.02-164.0.1 - Update grub2 dependencies to match new Secure Boot certificate chain of trust Orabug: 37766761 - Fix typo in SBAT metadata Orabug: 37693946 - Allow installation of grub2 only with...

CLSA-2025-1744724536 grub2: Fix of 5 CVEs

CVE-2025-0624: net: Out-of-bounds write in grubnetsearchconfigfile - CVE-2025-0690: read: Integer overflow may lead to out-of-bounds write - CVE-2025-1118: commands/dump: The dump command is not in lockdown when secure boot is enabled - CVE-2025-0678: squash4: Integer overflow may lead to heap...

CLSA-2025-1744717794 grub2: Fix of 5 CVEs

CVE-2025-0624: net: Out-of-bounds write in grubnetsearchconfigfile - CVE-2025-0690: read: Integer overflow may lead to out-of-bounds write - CVE-2025-1118: commands/dump: The dump command is not in lockdown when secure boot is enabled - CVE-2025-0678: squash4: Integer overflow may lead to heap...

CLSA-2025-1744628858 grub2: Fix of 5 CVEs

CVE-2025-0624: net: Out-of-bounds write in grubnetsearchconfigfile - CVE-2025-0690: read: Integer overflow may lead to out-of-bounds write - CVE-2025-1118: commands/dump: The dump command is not in lockdown when secure boot is enabled - CVE-2025-0678: squash4: Integer overflow may lead to heap...

Medium: grub2

Issue Overview: A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not...

Medium: grub2

Issue Overview: A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not...

Amazon Linux 2023 : grub2-common, grub2-efi-aa64, grub2-efi-aa64-cdboot (ALAS2023-2025-937)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-937 advisory. A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The...

AI Vulnerability Finding

Microsoft is reporting that its AI systems are able to find new vulnerabilities in source code: Microsoft discovered eleven vulnerabilities in GRUB2, including integer and buffer overflows in filesystem parsers, command flaws, and a side-channel in cryptographic comparison. Additionally, 9 buffer...

CLSA-2025-1744213211 grub2: Fix of 5 CVEs

CVE-2025-0624: net: Out-of-bounds write in grubnetsearchconfigfile - CVE-2025-0690: read: Integer overflow may lead to out-of-bounds write - CVE-2025-1118: commands/dump: The dump command is not in lockdown when secure boot is enabled - CVE-2025-0678: squash4: Integer overflow may lead to heap...

The vulnerability of the UFS file system used by Grub2 for operating system installations allows a hacker to bypass the secure boot mechanism.

The vulnerability of the UFS file system used by Grub2 operating systems is related to writing beyond the buffer boundaries. Exploiting this vulnerability could allow an attacker to bypass the secure boot mechanism...

grub2: net: Out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

grub2: net: Out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

grub2: net: Out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

grub2: net: Out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

CVE-2025-20143

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Secure Boot functionality and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges o...

grub2: net: Out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

grub2: net: Out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grubstrcpy function. During this step, it fails to consider the environment variable length...

CVE-2025-20143

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Secure Boot functionality and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges o...