PT-2021-20322 · Foxit · Foxit Reader+1

Published 2021-08-11 · Updated 2021-08-12 · CVE-2021-33793

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: Foxit Reader versions prior to 10.1.4 PhantomPDF versions prior to 10.1.4

Description: The issue arises from the mishandling of the Cross-Reference table during Office document conversion, leading to an out-of-bounds write.

Recommendations: For Foxit Reader versions prior to 10.1.4, update to version 10.1.4 or later. For PhantomPDF versions prior to 10.1.4, update to version 10.1.4 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-33793

Affected Products

Foxit Reader

Phantompdf

References · 5

• https://osv.dev/vulnerability/CVE-2021-33793 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33793 · Security Note
• https://foxitsoftware.com/support/security-bulletins.html · Vendor Advisory
• https://t.me/cibsecurity/27189 · Telegram Post
• https://t.me/cvenotify/19238 · Telegram Post