CVE-2021-31439CWE-122

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager

High · published May 21, 2021

CVSS v3.0
8.8
EPSS
2%
Percentile
83.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
8.8 · HIGH
Vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02331 · 83.4th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2021-05-21T00:00Z
EPSS history
Timeline
  • 21 MAY 00:00Z
    This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Synology DiskStation Manager
    cvelistv5