CVE-2023-40481: 7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. 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 SQFS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-18589.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2023-40481?
CVE-2023-40481 is classified as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2023-40481?
To mitigate CVE-2023-40481, users should update to the latest version of 7-Zip that addresses this vulnerability.
What are the risks associated with CVE-2023-40481?
The main risk of CVE-2023-40481 is that an attacker can execute arbitrary code on the affected system if a user interacts with a maliciously crafted SquashFS file.
Is user interaction required to exploit CVE-2023-40481?
Yes, user interaction is required as the target must open a specially crafted SquashFS file to trigger the vulnerability.
Which versions of 7-Zip are affected by CVE-2023-40481?
CVE-2023-40481 affects specific versions of 7-Zip that contain the vulnerable file parsing functionality.