3985 matches found
Astra Linux – Vulnerability in grub2
A out-of-bounds write flaw was discovered in grub2’s NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, resulting in corruption of grub’s heap metadata. In some cases, the attack may also corrupt the UEFI firmware heap metadata. As a...
Astra Linux – Vulnerability in grub2
When reading the .mo file in grubmofileopen, grub2 fails to verify an integer overflow during the allocation of its internal buffer. A specially crafted .mo file may cause the buffer size calculation to overflow, resulting in out-of-bound reads and writes. This flaw allows an attacker to leak...
Astra Linux – Vulnerability in grub2
A flaw was discovered in grub2. The calculation of the translation buffer when reading a language .mo file in grubgettextgetstrfromposition may overflow, resulting in an out-of-bound write. This issue can be exploited by an attacker to overwrite grub2’s sensitive heap data, ultimately allowing th...
Astra Linux – Vulnerability in grub2
A crafted 16-bit grayscale PNG image may lead to an out-of-bounds write in the heap area. An attacker may exploit this to cause heap data corruption or, ultimately, arbitrary code execution and circumvent secure boot protections. This issue is highly complex to exploit; an attacker needs to perfo...
Astra Linux – Vulnerability in Linux
The Linux kernel up to version 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database also known as dbx protection mechanism. This issue affects the certs/blacklist.c and certs/systemkeyring.c files...
Astra Linux – Vulnerability in grub2
A carefully crafted JPEG image may cause the JPEG reader to underflow its data pointer, allowing user-controlled data to be written into the heap. For the attack to succeed, the attacker must analyze the heap layout and create an image with malicious format and payloads. This vulnerability can le...
Astra Linux – Vulnerability in edk2
The Ubuntu edk2 UEFI firmware packages accidentally allowed access to the UEFI Shell in Secure Boot environments, potentially enabling bypass of Secure Boot restrictions. Versions 2024.05-2ubuntu0.3 and 2024.02-2ubuntu0.3 disable the Shell. Some earlier versions introduced a security measure base...
Astra Linux – Vulnerability in grub2
A flaw was discovered in grub2 in versions prior to 2.06, where it incorrectly enabled the use of the ACPI command when Secure Boot was enabled. This flaw allows an attacker with privileged access to create a Secondary System Description Table SSDT containing code that can overwrite the Linux...
Exploit for CVE-2026-79298
🐞 CVE-2026-79298: Incomplete Remediation of UEFI Secure Boo...
TALKINGEBN
|-------------------| TALKINGBEN : --- Un malware BootKit que primero realiza una escalada de privilegios en la máquina víctima. Utilizando parcheo en NtTraceEvent y AMSI escáner de búfer de memoria, lo que le permite evadir Windows Defender y cargar un payload sin ser detectado. Luego usamos...
AZL-100017 CVE-2026-6485 affecting package qemu 10.1.0-1
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
CVE-2026-6485
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
AZL-99990 CVE-2026-6485 affecting package edk2 20240524git3e722403cd16-20
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
CVE-2026-6485
CVE-2026-6485 affects UEFI BIOS firmware that embeds the TianoCore EDK II UEFI Shell in SPI Flash. A logic error in the Shell boot option removal process allows an attacker with root privileges to create multiple boot entries, bypassing the Secure Boot check and gaining access to the Shell's phys...
EUVD-2026-74613
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
CVE-2026-6485 UEFI BIOS embedded Shell can be used to bypass Secure Boot
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
CVE-2026-6485 UEFI BIOS embedded Shell can be used to bypass Secure Boot
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
CVE-2026-6485: Active Debug Code
UEFI BIOS embedded Shell could be used to bypass Secure Boot via shell commands or startup scripts...
