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Red Hat: CVE-2023-40546: shim: Out-of-bounds read printing error messages (Multiple Advisories)

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Red Hat: CVE-2023-40546: shim: Out-of-bounds read printing error messages (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
01/29/2024
Created
04/17/2024
Added
04/17/2024
Modified
09/03/2024

Description

A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.

Solution(s)

  • redhat-upgrade-mokutil
  • redhat-upgrade-mokutil-debuginfo
  • redhat-upgrade-shim-ia32
  • redhat-upgrade-shim-unsigned-ia32
  • redhat-upgrade-shim-unsigned-x64
  • redhat-upgrade-shim-x64

References

  • CVE-2023-40546
  • RHSA-2024:1835
  • RHSA-2024:1876
  • RHSA-2024:1883
  • RHSA-2024:1902
  • RHSA-2024:1903
  • RHSA-2024:1959
  • RHSA-2024:2086
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