PT-2021-19325 · Foxit · Foxit Reader

Mat Powell · Published 2021-05-07 · Updated 2021-05-11 · CVE-2021-31446

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. It requires user interaction, 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, resulting from the lack of proper validation of user-supplied data. This can lead to 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, as a temporary workaround, consider restricting the handling of U3D objects embedded in PDF files until a patch is available. Avoid opening malicious files or visiting malicious pages to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-31446

ZDI-21-535

Affected Products

Foxit Reader

References · 4

• https://zerodayinitiative.com/advisories/ZDI-21-535 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31446 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31446 · Security Note
• https://foxitsoftware.com/support/security-bulletins.php · Vendor Advisory