CVE-2022-23124: (Pwn2Own) Netatalk get_finderinfo Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Tue Mar 28 2023(Updated: )
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the get_finderinfo method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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-22-525/
- https://github.com/Netatalk/Netatalk/commit/4a8f6c964d5ca86df27c50e50dc1b60d39c9b76d
- https://sourceforge.net/p/netatalk/mailman/netatalk-devel/thread/49864b1b-6aa1-6859-3f53-a2018598b8ce%40synology.com/#msg37632074
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1013303
- https://salsa.debian.org/netatalk-team/netatalk/-/commit/9b7e96c9023402d4f7aa49e28e13aef31aeb1caf
- https://security-tracker.debian.org/tracker/CVE-2022-23124
- https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html
- https://www.debian.org/security/2023/dsa-5503
- https://security.gentoo.org/glsa/202311-02
Frequently Asked Questions
What is CVE-2022-23124?
CVE-2022-23124 is a vulnerability in Netatalk that allows remote attackers to disclose sensitive information.
How can remote attackers exploit CVE-2022-23124?
Remote attackers can exploit CVE-2022-23124 without authentication by taking advantage of the lack of proper validation in the get_finderinfo method.
What is the severity of CVE-2022-23124?
CVE-2022-23124 has a severity rating of 9.8, which is considered critical.
What is the affected software of CVE-2022-23124?
The affected software includes Netatalk versions up to and exclusive of 3.1.13.
How can I fix CVE-2022-23124?
To fix CVE-2022-23124, it is recommended to update Netatalk to version 3.1.13 or higher.
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