Vulnerability Details : CVE-2023-40481
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.
Vulnerability category: Memory CorruptionExecute code
Products affected by CVE-2023-40481
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Exploit prediction scoring system (EPSS) score for CVE-2023-40481
0.75%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-40481
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Zero Day Initiative | 2024-05-03 |
CWE ids for CVE-2023-40481
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The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2023-40481
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https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/
7-Zip / Discussion / Open Discussion: 7-Zip 23.00
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https://www.zerodayinitiative.com/advisories/ZDI-23-1164/
ZDI-23-1164 | Zero Day Initiative
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