CVE-2022-23121

Publication date 21 March 2022

Last updated 25 August 2025


Ubuntu priority

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

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 parse_entries function. The issue results from the lack of proper error handling when parsing AppleDouble entries. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15819. 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 parse_entries function. The issue results from the lack of proper error handling when parsing AppleDouble entries. An attacker can leverage this vulnerability to execute code in the context of root.]

Read the notes from the security team

Status

Package Ubuntu Release Status
netatalk 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Fixed 3.1.12~ds-9ubuntu0.22.04.1
21.10 impish Ignored end of life
20.04 LTS focal
Fixed 3.1.12~ds-4ubuntu0.20.04.1
18.04 LTS bionic
Fixed 2.2.6-1ubuntu0.18.04.2+esm1
16.04 LTS xenial
Fixed 2.2.5-1ubuntu0.2+esm1
14.04 LTS trusty
Fixed 2.2.2-1ubuntu2.2+esm1

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro 30-day free trial

Notes


0xnishit

Backporting MR is still in progress and have some regression issue Backporintg MR: https://github.com/Netatalk/Netatalk/pull/173

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

CVSS version: CVSS v3.0

Base score 9.8 · Critical

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


Access our resources on patching vulnerabilities