CVE-2022-0194: (Pwn2Own) Netatalk ad_addcomment Stack-based Buffer Overflow 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 ad_addcomment 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 stack-based buffer. 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 |
|---|---|---|
| debian/netatalk | <=3.1.12~ds-3 | 3.1.12~ds-3+deb10u4 3.1.12~ds-8+deb11u1 3.1.18~ds-1 |
| Netatalk Netatalk | <3.1.13 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
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Reference Links
- https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
- https://www.zerodayinitiative.com/advisories/ZDI-22-530/
- 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-2022-0194
- 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-2022-0194?
CVE-2022-0194 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Netatalk.
Is authentication required to exploit CVE-2022-0194?
No, authentication is not required to exploit CVE-2022-0194.
What is the severity of CVE-2022-0194?
CVE-2022-0194 has a severity rating of 9.8 (Critical).
How can I fix CVE-2022-0194?
To fix CVE-2022-0194, it is recommended to update to Netatalk version 3.1.13 or later.
Where can I find more information about CVE-2022-0194?
You can find more information about CVE-2022-0194 at the following references: [Link 1](https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html), [Link 2](https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html), [Link 3](https://www.debian.org/security/2023/dsa-5503).
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