CVE-2024-21820
Ubuntu Security Notice USN-7149-1
Severity Score
8.5
*CVSS v4
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
Avraham Shalev and Nagaraju N Kodalapura discovered that some Intel Xeon processors did not properly restrict access to the memory controller when using Intel SGX. This may allow a local privileged attacker to further escalate their privileges. It was discovered that some 4th and 5th Generation Intel Xeon Processors did not properly implement finite state machines in hardware logic. This may allow a local privileged attacker to cause a denial of service.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
System
Vulnerable | Subsequent
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-01-24 CVE Reserved
- 2024-11-13 CVE Published
- 2024-11-14 CVE Updated
- 2024-11-14 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-276: Incorrect Default Permissions
CAPEC
References (1)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
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| - | - | - | - | - | ||||||