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Ubuntu: (Multiple Advisories) (CVE-2023-4693): GRUB2 vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2023-4693): GRUB2 vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/04/2023
Created
10/06/2023
Added
10/06/2023
Modified
11/03/2023

Description

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 be leaked, presenting a high Confidentiality risk.

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

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