CVE-2017-7980
Publication date 21 April 2017
Last updated 25 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
Heap-based buffer overflow in Cirrus CLGD 54xx VGA Emulator in Quick Emulator (Qemu) 2.8 and earlier allows local guest OS users to execute arbitrary code or cause a denial of service (crash) via vectors related to a VNC client updating its display after a VGA operation.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| qemu-kvm | ||
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release | |
| qemu | ||
| 20.04 LTS focal | 
                              
                               
                                Fixed 1:2.8+dfsg-3ubuntu3 
                                
                               
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| 18.04 LTS bionic | 
                              
                               
                                Fixed 1:2.8+dfsg-3ubuntu3 
                                
                               
                             |      
                          
                            
                          
                        
                      |
| 16.04 LTS xenial | 
                              
                               
                                Fixed 1:2.5+dfsg-5ubuntu10.14 
                                
                               
                             |      
                          
                            
                          
                        
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| 14.04 LTS trusty | 
                              
                               
                                Fixed 2.0.0+dfsg-2ubuntu1.34 
                                
                               
                             |      
                          
                            
                          
                        
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Patch details
| Package | Patch details | 
|---|---|
| qemu | 
Severity score breakdown
| Parameter | Value | 
|---|---|
| Base score | 
                      
                      
                         | 
                  
| Attack vector | Local | 
| Attack complexity | Low | 
| Privileges required | Low | 
| User interaction | None | 
| Scope | Unchanged | 
| Confidentiality | High | 
| Integrity impact | High | 
| Availability impact | High | 
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | 
References
Related Ubuntu Security Notices (USN)
- USN-3289-1
 - QEMU vulnerabilities
 - 16 May 2017