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CVE-2023-40548 Details

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.

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References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2024:1834 CVE
https://access.redhat.com/errata/RHSA-2024:1835 CVE
https://access.redhat.com/errata/RHSA-2024:1873 CVE
https://access.redhat.com/errata/RHSA-2024:1876 CVE
https://access.redhat.com/errata/RHSA-2024:1883 CVE

see all 23 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or Wraparound[email protected]
CWE-190Integer Overflow or Wraparound[email protected]
CWE-787Out-of-bounds Write[email protected]

Affected Products

ProductVersions
redhat shim
< 15.8
15.8 rc1

CPE

  • cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:shim:15.8:rc1:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
39

CPE

  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

23 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-40548
NVD Published Date:
Jan 29, 2024
NVD Last Modified:
Jun 26, 2026
Source:
[email protected]