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Ubuntu: USN-6410-1 (CVE-2023-4692): GRUB2 vulnerabilities

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Ubuntu: USN-6410-1 (CVE-2023-4692): GRUB2 vulnerabilities

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
10/04/2023
Created
10/06/2023
Added
10/06/2023
Modified
01/30/2025

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 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.

Solution(s)

  • ubuntu-upgrade-grub-efi-amd64
  • ubuntu-upgrade-grub-efi-amd64-bin
  • ubuntu-upgrade-grub-efi-amd64-signed
  • ubuntu-upgrade-grub-efi-arm64
  • ubuntu-upgrade-grub-efi-arm64-bin
  • ubuntu-upgrade-grub-efi-arm64-signed

References

  • https://attackerkb.com/topics/cve-2023-4692
  • CVE - 2023-4692
  • USN-6410-1
  • 查看数 703
  • 已创建
  • 最后回复

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