The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, an Incremental Saving vulnerability exists in multiple products. When an attacker uses the Incremental Saving feature to add pages or annotations, Body Updates are displayed to the user without any action by the signature-validation logic. This affects Foxit Reader before 9.4 and PhantomPDF before 8.3.9 and 9.x before 9.4. It also affects LibreOffice, Master PDF Editor, Nitro Pro, Nitro Reader, Nuance Power PDF Standard, PDF Editor 6 Pro, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, Perfect PDF 10 Premium, and Perfect PDF Reader.
                
            References
                    | Link | Resource | 
|---|---|
| https://pdf-insecurity.org/signature/evaluation_2018.html | Third Party Advisory | 
| https://pdf-insecurity.org/signature/signature.html | Third Party Advisory | 
| https://www.foxitsoftware.com/support/security-bulletins.php | Vendor Advisory | 
| https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/ | Third Party Advisory | 
| https://pdf-insecurity.org/signature/evaluation_2018.html | Third Party Advisory | 
| https://pdf-insecurity.org/signature/signature.html | Third Party Advisory | 
| https://www.foxitsoftware.com/support/security-bulletins.php | Vendor Advisory | 
| https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/ | Third Party Advisory | 
Configurations
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History
                    21 Nov 2024, 03:56
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://pdf-insecurity.org/signature/evaluation_2018.html - Third Party Advisory | |
| References | () https://pdf-insecurity.org/signature/signature.html - Third Party Advisory | |
| References | () https://www.foxitsoftware.com/support/security-bulletins.php - Vendor Advisory | |
| References | () https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/ - Third Party Advisory | 
Information
                Published : 2021-01-07 18:15
Updated : 2024-11-21 03:56
NVD link : CVE-2018-18688
Mitre link : CVE-2018-18688
CVE.ORG link : CVE-2018-18688
JSON object : View
Products Affected
                qoppa
- pdf_studio
 - pdf_studio_viewer_2018
 
soft-xpansion
- perfect_pdf_10
 - perfect_pdf_reader
 
apple
- macos
 
iskysoft
- pdfelement6
 - pdf_editor_6
 
gonitro
- nitro_reader
 - nitro_pro
 
libreoffice
- libreoffice
 
microsoft
- windows
 
linux
- linux_kernel
 
code-industry
- master_pdf_editor
 
nuance
- power_pdf_standard
 
foxitsoftware
- phantompdf
 - foxit_reader
 
CWE
                
                    
                        
                        CWE-347
                        
            Improper Verification of Cryptographic Signature
