Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Local
0

CVE-2023-40551

Disclosure Date: January 29, 2024
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system’s boot phase.

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CVSS V3 Severity and Metrics
Base Score:
5.1 Medium
Impact Score:
4.2
Exploitability Score:
0.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
Low
Integrity (I):
None
Availability (A):
High

General Information

Vendors

  • fedoraproject,
  • redhat

Products

  • enterprise linux 8.0,
  • enterprise linux 9.0,
  • fedora 39,
  • shim
Technical Analysis