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://www.foxitsoftware.com/support/security-bulletins.php | Vendor Advisory |
| https://pdf-insecurity.org/signature/evaluation_2018.html | Third Party Advisory |
| https://pdf-insecurity.org/signature/signature.html | Third Party Advisory |
| https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities/ | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
| AND |
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Configuration 3 (hide)
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Information
Published : 2021-01-07 18:15
Updated : 2021-01-14 18:35
NVD link : CVE-2018-18688
Mitre link : CVE-2018-18688
JSON object : View
Products Affected
gonitro
- nitro_reader
- nitro_pro
libreoffice
- libreoffice
qoppa
- pdf_studio_viewer_2018
- pdf_studio
foxitsoftware
- foxit_reader
- phantompdf
code-industry
- master_pdf_editor
nuance
- power_pdf_standard
apple
- macos
linux
- linux_kernel
iskysoft
- pdf_editor_6
- pdfelement6
soft-xpansion
- perfect_pdf_reader
- perfect_pdf_10
microsoft
- windows
CWE
CWE-347
Improper Verification of Cryptographic Signature
