CVE-2018-17706: foxit foxit phantompdf Out-of-bounds Write

Vulnerability summary

CVE-2018-17706 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in foxit foxit phantompdf. EPSS estimates a 2.77% chance of exploitation in the next 30 days, higher than 86.1% of scored vulnerabilities.

Timeline

1. 29-10-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit PhantomPDF Phantom PDF 9.1.5096. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within fxhtml2pdf. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-6230.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.