PT-2021-19321 · Foxit · Foxit Reader

Mat Powell · Published 2021-05-07 · Updated 2021-05-11 · CVE-2021-31442

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Foxit Reader version 10.1.1.37576

Description This issue allows remote attackers to execute arbitrary code on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the handling of U3D objects in PDF files due to the lack of proper validation of user-supplied data. This can result in a write past the end of an allocated data structure, allowing an attacker to execute code in the context of the current process.

Recommendations For Foxit Reader version 10.1.1.37576, consider updating to a newer version that addresses this issue, as the current version allows for remote code execution due to improper validation of user-supplied data in U3D objects within PDF files.

Fix

RCE

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-31442

ZDI-21-531

Affected Products

Foxit Reader

References · 4

• https://zerodayinitiative.com/advisories/ZDI-21-531 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31442 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31442 · Security Note
• https://foxitsoftware.com/support/security-bulletins.php · Vendor Advisory