Attacker Value
Unknown
0
CVE-2023-0494
0
CVE ID
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CVE-2023-0494
(Last updated October 08, 2023) ▾
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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Lateral Movement
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Persistence
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Privilege Escalation
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Description
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.8 High
Impact Score:
5.9
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):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
xorg-x11-server xorg-server 21.1.7
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- fedoraproject,
- redhat,
- x.org
Products
- enterprise linux 8.0,
- enterprise linux 8.1,
- enterprise linux 9.0,
- enterprise linux aus 8.4,
- enterprise linux aus 8.6,
- enterprise linux desktop 7.0,
- enterprise linux eus 8.4,
- enterprise linux eus 8.6,
- enterprise linux eus 9.0,
- enterprise linux for ibm z systems 7.0,
- enterprise linux for ibm z systems 8.0,
- enterprise linux for ibm z systems eus 8.4,
- enterprise linux for ibm z systems eus 8.6,
- enterprise linux for power big endian 7.0,
- enterprise linux for power little endian 7.0,
- enterprise linux for power little endian 8.0,
- enterprise linux for power little endian 9.0,
- enterprise linux for power little endian eus 8.4,
- enterprise linux for power little endian eus 8.6,
- enterprise linux for scientific computing 7.0,
- enterprise linux server 7.0,
- enterprise linux server aus 8.2,
- enterprise linux server for power little endian update services for sap solutions 8.1,
- enterprise linux server for power little endian update services for sap solutions 8.2,
- enterprise linux server for power little endian update services for sap solutions 8.4,
- enterprise linux server for power little endian update services for sap solutions 8.6,
- enterprise linux server for power little endian update services for sap solutions 9.0,
- enterprise linux server tus 8.2,
- enterprise linux server tus 8.4,
- enterprise linux server tus 8.6,
- enterprise linux server update services for sap solutions 8.2,
- enterprise linux server workstation 7.0,
- fedora 36,
- fedora 37,
- x server
References
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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