CVE-2023-40481 7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

2024-05-0302:11:15

CWE-787

zdi

github.com

7-zip

squashfs

out-of-bounds

write

remote code execution

vulnerability

sqfs

validation

user-supplied data

buffer overflow

zdi-can-18589

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.4%

JSON

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.

CNA Affected

[
  {
    "vendor": "7-Zip",
    "product": "7-Zip",
    "versions": [
      {
        "version": "22.01",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]