7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Vulnerability Details
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.
Additional Details
7-Zip has issued an update to correct this vulnerability. More details can be found at:
https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/
Disclosure Timeline
- 2022-11-21 - Vulnerability reported to vendor
- 2023-08-23 - Coordinated public release of advisory
Credit
goodbyeselene
