ZDI-24-1640: XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. 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 RWZ files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2024-11950.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-24-1640?
The severity of ZDI-24-1640 is critical as it allows remote code execution on affected systems.
How do I fix ZDI-24-1640?
To fix ZDI-24-1640, you should update XnSoft XnView Classic to the latest version provided by the vendor.
What are the risks associated with ZDI-24-1640?
The risks associated with ZDI-24-1640 include potential unauthorized access to the system and execution of arbitrary code.
Is user interaction required for exploiting ZDI-24-1640?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file.
Who is affected by ZDI-24-1640?
Users of XnSoft XnView Classic are affected by the ZDI-24-1640 vulnerability.