ZDI-22-526: (Pwn2Own) Netatalk copyapplfile Stack-based Buffer Overflow Remote Code Execution Vulnerability
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netatalk |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-526?
ZDI-22-526 is considered a critical vulnerability due to the potential for remote code execution.
How do I fix ZDI-22-526?
To fix ZDI-22-526, update to the latest version of Netatalk that addresses the vulnerability.
What types of attacks can exploit ZDI-22-526?
ZDI-22-526 allows remote attackers to execute arbitrary code without authentication.
Which software versions are affected by ZDI-22-526?
ZDI-22-526 affects Netatalk installations prior to the updated version that resolves this vulnerability.
Is authentication required to exploit ZDI-22-526?
No, authentication is not required to exploit the ZDI-22-526 vulnerability.
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