PT-2021-19322 · Foxit · Foxit Reader

Mat Powell · Published 2021-05-07 · Updated 2021-05-11 · CVE-2021-31443

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

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

Description This issue allows remote attackers to disclose sensitive information 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 embedded in PDF files due to the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated object, potentially allowing an attacker to execute arbitrary code in the context of the current process when combined with other vulnerabilities.

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 the disclosure of sensitive information through the handling of U3D objects in PDF files. As a temporary workaround, avoid opening PDF files from untrusted sources to minimize the risk of exploitation.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-31443

ZDI-21-532

Affected Products

Foxit Reader

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-31443 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-532 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31443 · Vendor Advisory
• https://foxitsoftware.com/support/security-bulletins.php · Vendor Advisory