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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2021-01-07T17:38:45
Updated: 2021-01-07T17:51:10
Reserved: 2018-10-26T00:00:00
Link: CVE-2018-18688
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-01-07T18:15:12.497
Modified: 2021-01-14T18:35:28.727
Link: CVE-2018-18688
JSON object: View
Redhat Information
No data.
CWE