CVE-2022-23121

Netatalk parse_entries Improper Handling of Exceptional Conditions Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

It was discovered that Netatalk did not properly validate the length of user-supplied data in the DSI structures. A remote attacker could possibly use this issue to execute arbitrary code with the privileges of the user invoking the programs. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that Netatalk did not properly validate the length of user-supplied data in the ad_addcomment function. A remote attacker could possibly use this issue to execute arbitrary code with root privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

*Credits: NCC Group EDG (Alex Plaskett, Cedric Halbronn, Aaron Adams)

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-11 CVE Reserved
2022-03-23 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-755: Improper Handling of Exceptional Conditions

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/06/msg00000.html	Mailing List
https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html	Release Notes
https://www.zerodayinitiative.com/advisories/ZDI-22-527	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/202311-02	2023-11-22
https://www.debian.org/security/2023/dsa-5503	2023-11-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netatalk Search vendor "Netatalk"		Netatalk Search vendor "Netatalk" for product "Netatalk"				< 3.1.13 Search vendor "Netatalk" for product "Netatalk" and version " < 3.1.13"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected