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Huawei EulerOS: CVE-2023-40547: shim security update

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Huawei EulerOS: CVE-2023-40547: shim security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/25/2024
Created
06/01/2024
Added
05/31/2024
Modified
05/31/2024

Description

A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.

Solution(s)

  • huawei-euleros-2_0_sp12-upgrade-shim

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