CVE-2023-40481
Description
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.
How to fix CVE-2023-40481
To remediate CVE-2023-40481, upgrade the affected package to a fixed version below.
- —upgrade to 22.01+really25.01+dfsg-0+deb12u1 or later
- —upgrade to 16.02+really25.01+dfsg-0+deb11u1 or later
Is CVE-2023-40481 being exploited?
Moderate — EPSS is 10.8%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 22.01+really25.01+dfsg-0+deb12u1
- from 0, < 16.02+really25.01+dfsg-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |