CVE-2022-23121: (Pwn2Own) Netatalk parse_entries Improper Handling of Exceptional Conditions Remote Code Execution Vulnerability
First published: Tue Mar 28 2023(Updated: )
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.
Credit: zdi-disclosures@trendmicro.com zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netatalk Netatalk | <3.1.13 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| debian/netatalk | <=3.1.12~ds-3 | 3.1.12~ds-3+deb10u4 3.1.12~ds-8+deb11u1 3.1.18~ds-1 |
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Reference Links
- https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
- https://www.zerodayinitiative.com/advisories/ZDI-22-527/
- https://github.com/Netatalk/Netatalk/commit/0c0465e4e85a27105b61b3918df8f8df0565367c
- https://github.com/Netatalk/Netatalk/commit/62d4013c62be3b1b4a14f37057cb1c8f393c5fd1
- https://security-tracker.debian.org/tracker/CVE-2022-23121
- https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html
- https://lists.debian.org/debian-lts-announce/2023/06/msg00000.html
- https://www.debian.org/security/2023/dsa-5503
- https://security.gentoo.org/glsa/202311-02
Frequently Asked Questions
What is CVE-2022-23121?
CVE-2022-23121 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Netatalk.
Is authentication required to exploit CVE-2022-23121?
No, authentication is not required to exploit this vulnerability.
How severe is CVE-2022-23121?
CVE-2022-23121 has a severity rating of 9.8, which is considered critical.
What software is affected by CVE-2022-23121?
Netatalk versions up to and excluding 3.1.13 are affected. Netatalk Project, Netatalk software, and Debian's netatalk package versions are also impacted.
How can I fix CVE-2022-23121?
To fix CVE-2022-23121, update to Netatalk version 3.1.13 or later or apply the recommended patches for the affected software.
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