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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-0194
• https://netatalk.sourceforge.io/3.1/ReleaseNotes3.1.13.html
• https://www.zerodayinitiative.com/advisories/ZDI-22-530/
• 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