This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager. Authentication is not required to exploit this vulnerablity. The specific flaw exists within the processing of DSI structures in Netatalk. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-12326.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-21-492/ | third party advisory vdb entry |
| https://www.synology.com/zh-hk/security/advisory/Synology_SA_20_26 | vendor advisory |
| 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 |