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CVE-2022-23121

Published: 21 March 2022

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.]

Notes

AuthorNote
0xnishit
Backporting MR is still in progress and have some regression issue
Backporintg MR: https://github.com/Netatalk/Netatalk/pull/173

Priority

High

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
netatalk
Launchpad, Ubuntu, Debian
kinetic Not vulnerable
(3.1.13~ds-2)
lunar Not vulnerable
(3.1.13~ds-2)
bionic
Released (2.2.6-1ubuntu0.18.04.2+esm1)
Available with Ubuntu Pro
focal
Released (3.1.12~ds-4ubuntu0.20.04.1)
impish Ignored
(end of life)
upstream
Released (3.1.13)
jammy
Released (3.1.12~ds-9ubuntu0.22.04.1)
Patches:
upstream: https://github.com/Netatalk/Netatalk/commit/62d4013c62be3b1b4a14f37057cb1c8f393c5fd1
upstream: https://github.com/Netatalk/Netatalk/commit/0c0465e4e85a27105b61b3918df8f8df0565367c

Severity score breakdown

Parameter Value
Base score 9.8
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