ZDI-CAN-24346: ZDI-24-1532: 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.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2024-11477.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-24346?
ZDI-CAN-24346 has been classified as a critical vulnerability due to its potential to allow remote code execution.
How do I fix ZDI-CAN-24346?
To fix ZDI-CAN-24346, you should update to the latest version of 7-Zip, which includes patches for this vulnerability.
Who is affected by ZDI-CAN-24346?
All users and installations of 7-Zip are potentially affected by the ZDI-CAN-24346 vulnerability.
What kind of attacks are possible with ZDI-CAN-24346?
ZDI-CAN-24346 allows remote attackers to execute arbitrary code, which could lead to system compromise.
Is user interaction required to exploit ZDI-CAN-24346?
Yes, interaction with the affected library is required to exploit ZDI-CAN-24346, though attack vectors may vary.