CVE-2024-52880

The connected PT-2025-17633 entry provides concrete fixes for Insyde InsydeH2O kernel vulnerabilities: affected kernel versions are 5.2–05.29.49, 5.3–05.38.49, 5.4–05.46.49, 5.5–05.54.49, 5.6–05.61.49, and 5.7–05.70.49. The root cause is that the SecureBootHandler in the VariableRuntimeDxe driver...

Alibaba Cloud Linux 3 : 0134: grub2, mokutil, shim, and shim-unsigned-x64 (ALINUX3-SA-2022:0134)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0134 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2021-3695: A crafted 16-bit grayscale...

grub2: fs/ufs: OOB write in the heap

A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure...

grub2: reader/jpeg: Heap OOB Write during JPEG parsing

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 discarded...

grub2: read: Integer overflow may lead to out-of-bounds write

The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to...

grub2: grub-core/gettext: Integer overflow leads to Heap OOB Write and Read.

When reading the language .mo file in grubmofileopen, grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data o...

grub2: command/gpg: Use-after-free due to hooks not being removed on module unload

A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If...

EulerOS 2.0 SP10 : grub2 (EulerOS-SA-2025-1518)

According to the versions of the grub2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to...

EulerOS 2.0 SP10 : grub2 (EulerOS-SA-2025-1519)

According to the versions of the grub2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to...

SUSE CVE-2025-37866

In the Linux kernel, the following vulnerability has been resolved: mlxbf-bootctl: use sysfsemitat in securebootfusestateshow A warning is seen when running the latest kernel on a BlueField SOC: 251.512704 ------------ cut here ------------ 251.512711 invalid sysfsemit: buf:0000000003aa32ae...

CVE-2025-4382

A flaw was found in systems utilizing LUKS-encrypted disks with GRUB configured for TPM-based auto-decryption. When GRUB is set to automatically decrypt disks using keys stored in the TPM, it reads the decryption key into system memory. If an attacker with physical access can corrupt the underlyi...

UBUNTU-CVE-2025-37866

In the Linux kernel, the following vulnerability has been resolved: mlxbf-bootctl: use sysfsemitat in securebootfusestateshow A warning is seen when running the latest kernel on a BlueField SOC: 251.512704 ------------ cut here ------------ 251.512711 invalid sysfsemit: buf:0000000003aa32ae...

CVE-2025-37866

In the Linux kernel, the following vulnerability has been resolved: mlxbf-bootctl: use sysfsemitat in securebootfusestateshow A warning is seen when running the latest kernel on a BlueField SOC: 251.512704 ------------ cut here ------------ 251.512711 invalid sysfsemit: buf:0000000003aa32ae...

CVE-2025-37866 mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()

In the Linux kernel, the following vulnerability has been resolved: mlxbf-bootctl: use sysfsemitat in securebootfusestateshow A warning is seen when running the latest kernel on a BlueField SOC: 251.512704 ------------ cut here ------------ 251.512711 invalid sysfsemit: buf:0000000003aa32ae...

PT-2025-20516 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A warning occurs when running the latest kernel on a BlueField SOC due to the mlxbf-bootctl driver invoking sysfs emit with a buffer pointer that is not aligned to the start of the pag...

Cisco IOS Software for Cisco Catalyst 2960X, 2960XR, 2960CX, and 3560CX Series Switches Secure Boot Bypass Vulnerability

A vulnerability in Cisco IOS Software for Cisco Catalyst 2960X, 2960XR, 2960CX, and 3560CX Series Switches could allow an authenticated, local attacker with privilege level 15 or an unauthenticated attacker with physical access to the device to execute persistent code at boot time and break the...

How to create a PVS master target device on Hyper-V for Windows 11

The objective here is to creating a PVS master target device VM on Hyper-V, which can be used for both installing Windows 11 and also booting via PVS. Windows 11 has installation requirements which need both Secure boot and TPM available. Hyper-V VM options which are relevant here: Secure boot...

PT-2025-19327 · Intel · Intel Uefi

Name of the Vulnerable Software and Affected Versions: Intel UEFI affected versions not specified Description: A vulnerability in the digital signature verification process does not properly validate variable attributes, which allows an attacker to bypass signature verification by creating a...

Medium: grub2

Issue Overview: When reading the language .mo file in grubmofileopen, grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak...

Medium: grub2

Issue Overview: When reading the language .mo file in grubmofileopen, grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak...