CVE-2022-43634

2023-03-2900:00:00

CWE-122

zdi

www.cve.org

netatalk

remote code execution

authentication bypass

dsi_writeinit

heap-based buffer

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.065

Percentile

93.8%

JSON

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dsi_writeinit function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.

CNA Affected

[
  {
    "vendor": "Netatalk",
    "product": "Netatalk",
    "versions": [
      {
        "version": "3.1.13",
        "status": "affected"
      }
    ]
  }
]