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Gentoo Linux: CVE-2022-28737: GRUB: Multiple Vulnerabilities

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Gentoo Linux: CVE-2022-28737: GRUB: Multiple Vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/25/2022
Created
09/26/2022
Added
09/26/2022
Modified
07/31/2023

Description

There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.

Solution(s)

  • gentoo-linux-upgrade-sys-boot-grub

References

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