Riskcovery

CVE-2023-40549

Shim: out-of-bounds read in verify_buffer_authenticode() malformed pe file

State
Published
Severity
6.2 Medium
Published
Jan 29, 2024
Updated
Nov 20, 2025
Reserved
Aug 15, 2023

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat

Weaknesses

Affected Products

ProductVersions
Red Hat Enterprise Linux 7Red Hat
  • 0:15.8-3.el7 and laterNot affected
Red Hat Enterprise Linux 7Red Hat
  • 0:15.8-1.el7 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:15.8-4.el8_9 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat
  • 0:15.8-2.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat
  • 0:15.8-2.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat
  • 0:15.8-2.el8_2 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:15.8-2.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat
  • 0:15.8-2.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat
  • 0:15.8-2.el8_4 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat
  • 0:15.8-2.el8_6 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat
  • 0:15.8-2.el8 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat
  • 0:15.8-2.el8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:15.8-4.el9_3 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat
  • 0:15.8-3.el9 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat
  • 0:15.8-2.el9 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat
  • 0:15.8-2.el9 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat
  • 0:15.8-3.el9_2 and laterNot affected

References

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