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Oracle Linux: CVE-2023-40548: ELSA-2024-1903: shim bug fix update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2023-40548: ELSA-2024-1903:shim bug fix update (IMPORTANT) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:N/C:C/I:C/A:C)
Published
10/03/2023
Created
05/22/2024
Added
04/24/2024
Modified
01/07/2025

Description

A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.

Solution(s)

  • oracle-linux-upgrade-mokutil
  • oracle-linux-upgrade-shim-aa64
  • oracle-linux-upgrade-shim-ia32
  • oracle-linux-upgrade-shim-unsigned-x64
  • oracle-linux-upgrade-shim-x64

References

  • https://attackerkb.com/topics/cve-2023-40548
  • CVE - 2023-40548
  • ELSA-2024-1903
  • ELSA-2024-1959
  • ELSA-2024-1902
  • 查看数 704
  • 已创建
  • 最后回复

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