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CVE-2023-40548

nvd nist
Published: Jan 29, 2024Modified: Nov 21, 2024

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7.4
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.4 / Impact: 5.9
Source: NVD (Secondary)

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.

Affected (3)

1 product
Shim
1 product
Fedora
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Before 15.8
Version 15.8 rc1
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Version 39

References (23)

Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Issue TrackingVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.