CVE-2023-1544
Publication date 23 March 2023
Last updated 18 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| qemu | 25.10 questing | 
                              
                               
                                Fixed 1:8.1.3+ds-1ubuntu1 
                                
                               
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| 25.04 plucky | 
                              
                               
                                Fixed 1:8.1.3+ds-1ubuntu1 
                                
                               
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| 24.04 LTS noble | 
                              
                               
                                Fixed 1:8.1.3+ds-1ubuntu1 
                                
                               
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| 22.04 LTS jammy | 
                              
                               
                                Fixed 1:6.2+dfsg-2ubuntu6.16 
                                
                               
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| 20.04 LTS focal | 
                              
                               
                                Fixed 1:4.2-3ubuntu6.28 
                                
                               
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| 18.04 LTS bionic | 
                              
                               
                                Needs evaluation 
                                
                               
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| 16.04 LTS xenial | 
                              
                               
                                Needs evaluation 
                                
                               
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| 14.04 LTS trusty | 
                              
                               
                                Needs evaluation 
                                
                               
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Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score | 
                      
                      
                         | 
                  
| Attack vector | Local | 
| Attack complexity | Low | 
| Privileges required | High | 
| User interaction | None | 
| Scope | Changed | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | High | 
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-6567-1
 - QEMU vulnerabilities
 - 8 January 2024