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CVE-2022-43634

Publication date 29 March 2023

Last updated 24 July 2024

Ubuntu priority

High

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Status

Package Ubuntu Release Status
netatalk 23.04 lunar
Not affected
22.10 kinetic
Fixed 3.1.13~ds-2ubuntu0.22.10.1
22.04 LTS jammy
Fixed 3.1.12~ds-9ubuntu0.22.04.1
20.04 LTS focal
Fixed 3.1.12~ds-4ubuntu0.20.04.1
18.04 LTS bionic Ignored changes too intrusive
16.04 LTS xenial Ignored changes too intrusive
14.04 LTS trusty Ignored changes too intrusive

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
netatalk

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H