This vulnerability allows remote attackers to execute arbitrary code on...
Vulnerability Description
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 dsi_writeinit 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 heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Corentin BAYET (@OnlyTheDuck), Etienne HELLUY-LAFONT and Luca MORO (@johncool__) from Synacktiv
References
- https://www.zerodayinitiative.com/advisories/ZDI-23-094/
- https://github.com/Netatalk/Netatalk/pull/186
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZYWSGVA6WXREMB6PV56HAHKU7R6KPOP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SG6WZW5LXFVH3P7ZVZRGHUVJEMEFKQLI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GEAFLA5L2SHOUFBAGUXIF2TZLGBXGJKT/
- https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html
- https://www.debian.org/security/2023/dsa-5503
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