CVE-2024-30322: 
Foxit PDF Reader vulnerability analysis and mitigation

A use-after-free vulnerability (CVE-2024-30322) was discovered in Foxit PDF Reader's AcroForm handling functionality. The vulnerability was reported by an anonymous researcher through the Zero Day Initiative and was publicly disclosed on March 28, 2024. This security flaw affects Foxit PDF Reader installations and requires user interaction, specifically opening a malicious file or visiting a malicious page, to be exploited (ZDI Advisory).

The vulnerability exists within the handling of AcroForms in Foxit PDF Reader. The specific issue stems from the application's failure to validate the existence of an object before performing operations on it. This use-after-free condition occurs when the application attempts to use a pointer after the memory it references has been freed. The vulnerability has been assigned a CVSS v3.0 base score of 7.8 (HIGH) with the vector string: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (ZDI Advisory).

If successfully exploited, this vulnerability allows attackers to execute arbitrary code in the context of the current process. This means an attacker could potentially gain the same privileges as the application running the vulnerable code, potentially leading to full system compromise (ZDI Advisory).

Foxit has released security updates to address this vulnerability. Users are advised to update their Foxit PDF Reader installations to the latest version. The fix is included in the security updates available through the application's built-in update mechanism or can be downloaded directly from Foxit's website (Foxit Security Bulletin).