HomeSynologyCVE-2021-31439

CVE-2021-31439

HIGH
8.8CVSS
Published: 2021-05-21
Updated: 2025-01-14
AI Analysis

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.

CVSS Metrics

Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
adjacent network
Complexity
low
Privileges
none
User Action
none
Scope
unchanged
Confidentiality
high
Integrity
high
Availability
high
Weaknesses
CWE-122CWE-787

Metadata

Primary Vendor
SYNOLOGY
Published
5/21/2021
Last Modified
1/14/2025
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

synology : diskstation_managerdebian : debian_linuxdebian : debian_linuxnetatalk : netatalk

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CVE-CVE-2021-31439 | HIGH Severity | CVEDatabase.com | CVEDatabase.com