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. Was ZDI-CAN-15869.
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html | release notes |
| https://www.zerodayinitiative.com/advisories/ZDI-22-526/ | third party advisory vdb entry |
| https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html | third party advisory mailing list |
| https://www.debian.org/security/2023/dsa-5503 | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/202311-02 | vendor advisory third party advisory issue tracking |