CVE-2018-18689
https://notcve.org/view.php?id=CVE-2018-18689
The Portable Document Format (PDF) specification does not provide any information regarding the concrete procedure of how to validate signatures. Consequently, a Signature Wrapping vulnerability exists in multiple products. An attacker can use /ByteRange and xref manipulations that are not detected 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 eXpert PDF 12 Ultimate, Expert PDF Reader, Nitro Pro, Nitro Reader, PDF Architect 6, PDF Editor 6 Pro, PDF Experte 9 Ultimate, PDFelement6 Pro, PDF Studio Viewer 2018, PDF Studio Pro, PDF-XChange Editor and Viewer, Perfect PDF 10 Premium, Perfect PDF Reader, Soda PDF, and Soda PDF Desktop. • https://pdf-insecurity.org/signature/evaluation_2018.html https://pdf-insecurity.org/signature/signature.html https://www.foxitsoftware.com/support/security-bulletins.php https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities • CWE-347: Improper Verification of Cryptographic Signature •
CVE-2018-18688
https://notcve.org/view.php?id=CVE-2018-18688
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. • https://pdf-insecurity.org/signature/evaluation_2018.html https://pdf-insecurity.org/signature/signature.html https://www.foxitsoftware.com/support/security-bulletins.php https://www.pdfa.org/recently-identified-pdf-digital-signature-vulnerabilities • CWE-347: Improper Verification of Cryptographic Signature •
CVE-2020-6093
https://notcve.org/view.php?id=CVE-2020-6093
An exploitable information disclosure vulnerability exists in the way Nitro Pro 13.9.1.155 does XML error handling. A specially crafted PDF document can cause uninitialized memory access resulting in information disclosure. In order to trigger this vulnerability, victim must open a malicious file. Se presenta una vulnerabilidad de divulgación de información explotable en la manera en que Nitro Pro versión 13.9.1.155 realiza el manejo de errores XML. Un documento PDF especialmente diseñado puede causar un acceso a la memoria no inicializada resultando en una divulgación de información. • https://talosintelligence.com/vulnerability_reports/TALOS-2020-1014 • CWE-824: Access of Uninitialized Pointer •
CVE-2020-6092
https://notcve.org/view.php?id=CVE-2020-6092
An exploitable code execution vulnerability exists in the way Nitro Pro 13.9.1.155 parses Pattern objects. A specially crafted PDF file can trigger an integer overflow that can lead to arbitrary code execution. In order to trigger this vulnerability, victim must open a malicious file. Se presenta una vulnerabilidad de ejecución de código explotable en la manera en que Nitro Pro versión 13.9.1.155, analiza los objetos Pattern. Un archivo PDF especialmente diseñado puede desencadenar un desbordamiento de enteros que puede conllevar a una ejecución de código arbitraria. • https://talosintelligence.com/vulnerability_reports/TALOS-2020-1013 • CWE-190: Integer Overflow or Wraparound •
CVE-2020-6074
https://notcve.org/view.php?id=CVE-2020-6074
An exploitable code execution vulnerability exists in the PDF parser of Nitro Pro 13.9.1.155. A specially crafted PDF document can cause a use-after-free which can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability. Se presenta una vulnerabilidad de ejecución de código explotable en el analizador de PDF de Nitro Pro versión 13.9.1.155. Un documento PDF especialmente diseñado puede causar un uso de la memoria previamente liberada que puede conllevar a una ejecución de código remota. • https://talosintelligence.com/vulnerability_reports/TALOS-2020-0997 • CWE-416: Use After Free •