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Huawei EulerOS: CVE-2022-28737: shim security update

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Huawei EulerOS: CVE-2022-28737: shim security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/16/2022
Created
08/29/2022
Added
08/18/2022
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)

  • huawei-euleros-2_0_sp5-upgrade-shim-unsigned-x64

References

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