CVE-2022-23125: (Pwn2Own) Netatalk copyapplfile 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 copyapplfile function. When parsing the len element, the process does not properly validate 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 |
|---|---|---|
| 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-22-526/
- 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
- https://github.com/Netatalk/Netatalk/commit/d801ed421800bcd5df9045f7327c92cd4fc944aa
- https://security-tracker.debian.org/tracker/CVE-2022-23125
Frequently Asked Questions
What is CVE-2022-23125?
CVE-2022-23125 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Netatalk.
How severe is CVE-2022-23125?
CVE-2022-23125 has a severity rating of 9.8 (critical).
Is authentication required to exploit CVE-2022-23125?
No, authentication is not required to exploit CVE-2022-23125.
Which versions of Netatalk are affected by CVE-2022-23125?
Netatalk versions up to exclusive 3.1.13 are affected by CVE-2022-23125.
How can I fix CVE-2022-23125?
To fix CVE-2022-23125, you should update Netatalk to version 3.1.17 or apply the appropriate patch from the vendor.
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