CVE-2021-31439

State: Published
Severity: 8.8 High
Published: May 21, 2021
Updated: Aug 3, 2024
Reserved: Apr 16, 2021

Description

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.

Scores

CVSS	Score	Vector	Source
3.0	8.8 High	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	zdi

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
DiskStation ManagerSynology	6.1.1-15101-4Affected

References

https://www.zerodayinitiative.com/advisories/ZDI-21-492/
https://www.synology.com/zh-hk/security/advisory/Synology_SA_20_26
[debian-lts-announce] 20230516 [SECURITY] [DLA 3426-1] netatalk security updatemailing-list
DSA-5503vendor-advisory
GLSA-202311-02vendor-advisory

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