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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 result, arbitrary code execution and secure boot protection bypass may be achieved. An out-of-bounds read f ...

Maxim Suhanov discovered multiple vulnerabilities in GURB2"s code to handle NTFS filesystems, which may result in a Secure Boot bypass.

grub2-signed: GRand Unified Bootloader - grub2-unsigned: GRand Unified Bootloader Several security issues were fixed in GRUB2.

This update for grub2 fixes the following issues: Security fixes: \- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. \- CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. Other fixes: \- Fix "command not found" error of grub2-once

This update for grub2 fixes the following issues: * CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. * CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information

This update for grub2 fixes the following issues: Security fixes: \- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. \- CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. Other fixes: \- Fix a boot delay issue in PowerPC PXE boot

This update for grub2 fixes the following issues: Security fixes: \- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. \- CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. Other fixes: \- Fix a boot delay issue in PowerPC PXE boot

Maxim Suhanov discovered multiple vulnerabilities in GURB2"s code to handle NTFS filesystems, which may result in a Secure Boot bypass.

grub2-signed: GRand Unified Bootloader - grub2-unsigned: GRand Unified Bootloader Several security issues were fixed in GRUB2.

Samba is the standard Windows interoperability suite of programs for Linux and Unix.


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