CVE-2022-43634

Publication date 29 March 2023

Last updated 25 August 2025

Ubuntu priority

High

Why this 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 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 end of standard support, was needs-triage
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support

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

References

Related Ubuntu Security Notices (USN)

Other references

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