CVE-2024-11477: 7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability
7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the implementation of Zstandard decompression. 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. Was ZDI-CAN-24346.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-11477?
CVE-2024-11477 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2024-11477?
To mitigate CVE-2024-11477, update 7-Zip to version 24.07 or later as that version includes a patch for this vulnerability.
What types of systems are affected by CVE-2024-11477?
CVE-2024-11477 affects all installations of 7-Zip prior to version 24.07.
What could an attacker do if CVE-2024-11477 is exploited?
If exploited, CVE-2024-11477 allows attackers to execute arbitrary code on the targeted system.
Is user interaction required to exploit CVE-2024-11477?
Yes, interaction with the 7-Zip library is necessary for an attacker to exploit CVE-2024-11477.