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CVE-2023-40548 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2024:1834
https://access.redhat.com/errata/RHSA-2024:1834
https://access.redhat.com/errata/RHSA-2024:1835
https://access.redhat.com/errata/RHSA-2024:1835
https://access.redhat.com/errata/RHSA-2024:1873
https://access.redhat.com/errata/RHSA-2024:1873
https://access.redhat.com/errata/RHSA-2024:1876
https://access.redhat.com/errata/RHSA-2024:1876
https://access.redhat.com/errata/RHSA-2024:1883
https://access.redhat.com/errata/RHSA-2024:1883
https://access.redhat.com/errata/RHSA-2024:1902
https://access.redhat.com/errata/RHSA-2024:1902
https://access.redhat.com/errata/RHSA-2024:1903
https://access.redhat.com/errata/RHSA-2024:1903
https://access.redhat.com/errata/RHSA-2024:1959
https://access.redhat.com/errata/RHSA-2024:1959
https://access.redhat.com/errata/RHSA-2024:2086
https://access.redhat.com/errata/RHSA-2024:2086
https://access.redhat.com/security/cve/CVE-2023-40548 Vendor Advisory 
https://access.redhat.com/security/cve/CVE-2023-40548 Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2241782 Issue Tracking  Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2241782 Issue Tracking  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST   Red Hat, Inc.  
CWE-190 Integer Overflow or Wraparound cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

20 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-40548
NVD Published Date:
01/29/2024
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.