CVE-2022-43634

2023-03-2900:00:00

ubuntu.com

netatalk

vulnerability

remote code execution

authentication

validation

heap-based buffer

zdi-can-17646

unix

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.065 Low

EPSS

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.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchnetatalk< 3.1.12~ds-4ubuntu0.20.04.1UNKNOWN
ubuntu22.04noarchnetatalk< 3.1.12~ds-9ubuntu0.22.04.1UNKNOWN
ubuntu22.10noarchnetatalk< 3.1.13~ds-2ubuntu0.22.10.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	netatalk	< 3.1.12~ds-4ubuntu0.20.04.1	UNKNOWN
ubuntu	22.04	noarch	netatalk	< 3.1.12~ds-9ubuntu0.22.04.1	UNKNOWN
ubuntu	22.10	noarch	netatalk	< 3.1.13~ds-2ubuntu0.22.10.1	UNKNOWN