CVE-2023-4693

An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to...

PT-2023-6116 · Grub2 +10 · Grub2 +10

Name of the Vulnerable Software and Affected Versions: Grub2 affected versions not specified Description: An out-of-bounds write flaw was found in Grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to Grub's heap metadata...

Reports about Cyber Actors Hiding in Router Firmware

On September 27, 2023, the U.S. National Security Agency NSA, the U.S. Federal Bureau of Investigation FBI, the U.S. Cybersecurity and Infrastructure Security Agency CISA, the Japan National Police Agency NPA, and the Japan National Center of Incident Readiness and Strategy for Cybersecurity NISC...

New security features in Windows 11 protect users and empower IT

While attacks are getting more sophisticated, so are our defenses. With recent innovations like secured-core PCs that are 60 percent more resilient to malware than non-secured-core PCs,1 and the Microsoft Pluton Security Processor that adds more protection by isolating sensitive data like...

Design/Logic Flaw

When sealing/unsealing the “vault” key, a list of PCRs is used, which defines which PCRs are used. In a previous project, CYMOTIVE found that the configuration is not protected by the secure boot, and in response Zededa implemented measurements on the config partition that was mapped to PCR 13. I...

CVE-2023-43634

CVE-2023-43634 relates to the EVE project: the config partition is measured for TPM PCRs used to seal/unseal the vault key. A change moved the config partition measurement from PCR 13 to PCR 14, but PCR 14 was not added to the sealing/unsealing list, making PCR 14’s measurement effectively redund...

USN-6355-1 grub2-signed, grub2-unsigned, shim, and shim-signed vulnerability

Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local attacker could possibly use this to circumvent secure boot protections. CVE-2021-3695 Daniel Axtens discovered that specially crafted images could cause out-of-bonds read and write. A local...

USN-6355-1: GRUB2 vulnerabilities

Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local attacker could possibly use this to circumvent secure boot protections. CVE-2021-3695 Daniel Axtens discovered that specially crafted images could cause out-of-bonds read and write. A local...

Ubuntu 20.04 LTS / 22.04 LTS : GRUB2 vulnerabilities (USN-6355-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6355-1 advisory. Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local attacker could possibly use this ...

Ubuntu: Security Advisory (USN-6355-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

Oracle Linux 7 : grub2 (ELSA-2020-5790)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5790 advisory. - Fix CVE-2020-10713, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-15705, CVE-2020-15706, CVE-2020-15707 Orabug: 31225072...

CVE-2023-38486

A vulnerability in the secure boot implementation on affected Aruba 9200 and 9000 Series Controllers and Gateways allows an attacker to bypass security controls which would normally prohibit unsigned kernel images from executing. An attacker can use this vulnerability to execute arbitrary...

CVE-2023-38486

A vulnerability in the secure boot implementation on affected Aruba 9200 and 9000 Series Controllers and Gateways allows an attacker to bypass security controls which would normally prohibit unsigned kernel images from executing. An attacker can use this vulnerability to execute arbitrary...

Security feature bypass

A vulnerability in the secure boot implementation on affected Aruba 9200 and 9000 Series Controllers and Gateways allows an attacker to bypass security controls which would normally prohibit unsigned kernel images from executing. An attacker can use this vulnerability to execute arbitrary...

CVE-2023-38486 Hardware Root of Trust Bypass in 9200 and 9000 Series Controllers and Gateways

A vulnerability in the secure boot implementation on affected Aruba 9200 and 9000 Series Controllers and Gateways allows an attacker to bypass security controls which would normally prohibit unsigned kernel images from executing. An attacker can use this vulnerability to execute arbitrary...

CVE-2023-38486 Hardware Root of Trust Bypass in 9200 and 9000 Series Controllers and Gateways

A vulnerability in the secure boot implementation on affected Aruba 9200 and 9000 Series Controllers and Gateways allows an attacker to bypass security controls which would normally prohibit unsigned kernel images from executing. An attacker can use this vulnerability to execute arbitrary...

CVE-2023-38486

The CVE-2023-38486 entry describes a flaw in the secure boot implementation on Aruba 9200 and 9000 Series Controllers and Gateways. The issue allows bypassing the secure-boot protections that normally prohibit unsigned kernel images from executing, enabling an attacker to run arbitrary runtime op...

Aruba Networks Aruba 9200 and 9000 Security Vulnerabilities

The Aruba Networks Aruba 9200 and Aruba Networks Aruba 9000 are a family of security gateways from Aruba Networks, Inc. A security vulnerability exists in the Aruba Networks Aruba 9200 and 9000 that stems from a flaw in the secure boot implementation, which can be exploited to bypass security...

PT-2023-26466 · Aruba · Aruba 9000 Series Gateways +3

Name of the Vulnerable Software and Affected Versions: Aruba 9200 and 9000 Series Controllers and Gateways affected versions not specified Description: A vulnerability in the secure boot implementation allows an attacker to bypass security controls, which would normally prohibit unsigned kernel...

PT-2023-8436

Name of the Vulnerable Software and Affected Versions Shim versions prior to 15.8 Description A remote code execution vulnerability was found in Shim, a core component of secure boot in Linux. The vulnerability allows an attacker to craft a specific malicious HTTP request, leading to a completely...