Attacker Value
Unknown
0
CVE-2023-40550
0
CVE ID
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CVE-2023-40550
(Last updated April 29, 2024) ▾
MITRE ATT&CK
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Collection
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Command and Control
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Credential Access
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Defense Evasion
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Discovery
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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
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose 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:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
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 Exploited in the Wild
CVE ID
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