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Alma Linux: CVE-2023-40549: Important: shim security update (Multiple Advisories)

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Alma Linux: CVE-2023-40549: Important: shim security update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
01/29/2024
Created
05/13/2024
Added
05/13/2024
Modified
01/28/2025

Description

An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.

Solution(s)

  • alma-upgrade-shim-aa64
  • alma-upgrade-shim-ia32
  • alma-upgrade-shim-x64

References

  • https://attackerkb.com/topics/cve-2023-40549
  • CVE - 2023-40549
  • https://errata.almalinux.org/8/ALSA-2024-1902.html
  • https://errata.almalinux.org/9/ALSA-2024-1903.html
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