PDF-XChange Editor JB2 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. 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 parsing of JB2 files. 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 object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. . Was ZDI-CAN-20985.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-42068
• https://www.tracker-software.com/support/security-bulletins.html
• https://www.zerodayinitiative.com/advisories/ZDI-23-1369