CVE-2023-51553: 
Foxit PDF Reader vulnerability analysis and mitigation

Foxit PDF Reader Bookmark Out-Of-Bounds Read Information Disclosure Vulnerability (CVE-2023-51553) was discovered and disclosed on December 20, 2023. This vulnerability affects Foxit PDF Reader installations and requires user interaction to be exploited, specifically requiring the target to visit a malicious page or open a malicious file (ZDI Advisory).

The vulnerability exists within the handling of Bookmark objects in Foxit PDF Reader. The specific flaw stems from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. The vulnerability has been assigned a CVSS v3.0 score of 3.3 (LOW) with the vector string: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N (ZDI Advisory).

When exploited, this vulnerability allows attackers to disclose sensitive information on affected installations of Foxit PDF Reader. The vulnerability can potentially be leveraged in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process (ZDI Advisory).

The vulnerability requires user interaction for exploitation, specifically requiring the target to visit a malicious page or open a malicious file. The attack complexity is considered low, requires no privileges, but does need user interaction (ZDI Advisory).

Foxit has released security updates to address this vulnerability. Users are advised to update their applications to the latest version. The fix is available in Foxit PDF Reader 2024.4 and Foxit PDF Editor 2024.4/13.1.5. Users can update their applications through the built-in update feature or download the latest version from the Foxit website (Foxit Security).