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. Was ZDI-CAN-15876.
https://www.zerodayinitiative.com/advisories/ZDI-22-530/
https://www.debian.org/security/2023/dsa-5503
https://security.gentoo.org/glsa/202311-02
https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html