CVE-2023-40481
Fixed in a distro release EPSS 14%CVSS 7.8
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.
Products: 7-zip
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | 7zip | 22.01+really25.01+dfsg-0+deb12u1 |
| Debian 12 | p7zip | 16.02+really25.01+dfsg-0+deb12u1 |
| Debian 13 | 7zip | 23.01+dfsg-1 |
| Debian 13 | p7zip | 16.02+transitional.1 |
| Debian 14 | 7zip | 23.01+dfsg-1 |
| Ubuntu Pro 22.04 LTS | 7zip | no fix |