Attacker Value
Unknown
0
CVE-2023-40551
0
CVE ID
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CVE-2023-40551
(Last updated April 29, 2024) ▾
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Command and Control
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Execution
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Exfiltration
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Impact
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Initial Access
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Persistence
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Privilege Escalation
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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
Data provided by the National Vulnerability Database (NVD)
Base Score:
5.1 Medium
Impact Score:
4.2
Exploitability Score:
0.8
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
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Red Hat Enterprise Linux 7 not down converted
Red Hat Enterprise Linux 7 not down converted
Red Hat Enterprise Linux 8 not down converted
Red Hat Enterprise Linux 8.2 Advanced Update Support not down converted
Red Hat Enterprise Linux 8.2 Telecommunications Update Service not down converted
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions not down converted
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support not down converted
Red Hat Enterprise Linux 8.4 Telecommunications Update Service not down converted
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions not down converted
Red Hat Enterprise Linux 8.6 Extended Update Support not down converted
Red Hat Enterprise Linux 8.8 Extended Update Support not down converted
Red Hat Enterprise Linux 8.8 Extended Update Support not down converted
Red Hat Enterprise Linux 9 not down converted
Red Hat Enterprise Linux 9.0 Extended Update Support not down converted
Red Hat Enterprise Linux 9.0 Extended Update Support not down converted
Red Hat Enterprise Linux 9.0 Extended Update Support not down converted
Red Hat Enterprise Linux 9.2 Extended Update Support not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- fedoraproject,
- redhat
Products
- enterprise linux 8.0,
- enterprise linux 9.0,
- fedora 39,
- shim
References
Miscellaneous
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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