CVE-2023-4504
Publication date 20 September 2023
Last updated 19 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are susceptible to a heap-based buffer overflow and possibly code execution. This issue has been fixed in CUPS version 2.4.7, released in September of 2023.
Status
| Package | Ubuntu Release | Status | 
|---|---|---|
| cups | 25.10 questing | 
                                Fixed 2.4.6-0ubuntu2 
                                
                               | 
| 25.04 plucky | 
                                Fixed 2.4.6-0ubuntu2 
                                
                               | |
| 24.04 LTS noble | 
                                Fixed 2.4.6-0ubuntu2 
                                
                               | |
| 22.04 LTS jammy | 
                                Fixed 2.4.1op1-1ubuntu4.7 
                                
                               | |
| 20.04 LTS focal | 
                                Fixed 2.3.1-9ubuntu1.6 
                                
                               | |
| 18.04 LTS bionic | 
                                Fixed 2.2.7-1ubuntu2.10+esm2 
                                
                                   | |
| 16.04 LTS xenial | 
                                Fixed 2.1.3-4ubuntu0.11+esm4 
                                
                                   | |
| 14.04 LTS trusty | Ignored end of standard support | |
| libppd | 25.10 questing | 
                                Fixed 2:2.0~rc1-0ubuntu4 
                                
                               | 
| 25.04 plucky | 
                                Fixed 2:2.0~rc1-0ubuntu4 
                                
                               | |
| 24.04 LTS noble | 
                                Fixed 2:2.0~rc1-0ubuntu4 
                                
                               | |
| 22.04 LTS jammy | 
                                Needs evaluation 
                                
                               | |
| 20.04 LTS focal | 
                                Needs evaluation 
                                
                               | |
| 18.04 LTS bionic | 
                                Needs evaluation 
                                
                               | |
| 16.04 LTS xenial | 
                                Needs evaluation 
                                
                               | |
| 14.04 LTS trusty | Ignored end of standard support | 
Get expanded security coverage with Ubuntu Pro
Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.
Get Ubuntu Pro 30-day free trialSeverity score breakdown
| Parameter | Value | 
|---|---|
| Base score |  | 
| Attack vector | Local | 
| Attack complexity | Low | 
| Privileges required | High | 
| User interaction | None | 
| Scope | Unchanged | 
| Confidentiality | None | 
| Integrity impact | None | 
| Availability impact | None | 
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:N | 
References
Related Ubuntu Security Notices (USN)
- USN-6391-1
- CUPS vulnerability
- 20 September 2023
- USN-6392-1
- libppd vulnerability
- 20 September 2023
- USN-6391-2
- CUPS vulnerability
- 21 September 2023