Important: grub2

Issue Overview: 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 corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap...

Low: grub2

Issue Overview: No CVE associated with this advisory Affected Packages: grub2 Issue Correction: Run dnf update grub2 --releasever 2023.2.20231030 or dnf update --advisory ALAS2023-2023-408 --releasever 2023.2.20231030 to update your system. More information on how to update your system can be fou...

SUSE CVE-2015-5281

The grub2 package before 2.02-0.29 in Red Hat Enterprise Linux RHEL 7, when used on UEFI systems, allows local users to bypass intended Secure Boot restrictions and execute non-verified code via a crafted 1 multiboot or 2 multiboot2 module in the configuration file or physically proximate attacke...

Important Photon OS Security Update - PHSA-2023-5.0-0130

Updates of 'linux', 'linux-secure', 'grub2', 'linux-esx', 'linux-rt' packages of Photon OS have been released...

Important Photon OS Security Update - PHSA-2023-5.0-91-0130

Updates of 'linux-rt', 'linux-esx', 'grub2', 'linux-secure', 'linux' packages of Photon OS have been released...

Grub2: out-of-bounds write at fs/ntfs.c may lead to unsigned code execution

...

grub2 security update

2.02-0.87.0.26.el79.9 - Enable common subpackage for aarch64 - Do not sign aarch64 efi binaries Orabug: 32670043 - Remove aarch64 deps on shim Orabug: 32670043 - Restore versioned certificate provide for aarch64 package to satisfy shim Orabug: 32670043 2.02-0.87.0.24.el79.9 - Replace...

Oracle Linux 7 : grub2 (ELSA-2023-12952)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12952 advisory. - Add CVE-2022-28736 to the list JIRA: OLDIS-16371 - Fix: CVE-2021-3695, CVE-2021-3696, CVE-2021-3697, CVE-2022-28733, CVE-2022-28734, CVE-2022-28735...

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...

AZL-31686 CVE-2023-4692 affecting package grub2 for versions less than 2.06-13

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 corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

DEBIAN-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...

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...

CVE-2023-4692

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 corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

AZL-31685 CVE-2023-4693 affecting package grub2 for versions less than 2.06-13

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...

CVE-2023-4692

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 corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

AZL-34794 CVE-2023-4693 affecting package grub2 for versions less than 2.06-18

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...

Heap overflow

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 corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

Design/Logic Flaw

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...

CVE-2023-4692 Grub2: out-of-bounds write at fs/ntfs.c may lead to unsigned code execution

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 corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a...

CVE-2023-4692

Concretely documented: CVE-2023-4692 is an out-of-bounds write in grub2’s NTFS driver that can corrupt heap metadata, potentially enabling arbitrary code execution and secure-boot protection bypass. Several connected advisories (e.g., CBL-Mariner) note that a patched grub2 is available; affected ...