Vulnerability · Published May 7, 2021 · Assigned by zdi
CVE-2021-31468
High 7.8
In plain English
A high-severity out-of-bounds read in Reader from Foxit. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 87% of all known vulnerabilities).
Official description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.3.37598. 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 the handling of U3D files embedded in PDF documents. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13620.
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://www.foxitsoftware.com/support/security-bulletins.php x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-21-557/ x_refsource_MISC