CVE-2021-31439

Katalog CVE

CVSS 8.8 · High EPSS 2,3%

Kerentanan Heap-based Buffer Overflow pada synology diskstation manager, debian linux +1 lainnya. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

21 Mei 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

EPSS (30 hari)

2,3% peluang dieksploitasi; lebih tinggi dari 83,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.synology.com/zh-hk/security/advisory/Synology_SA_20_26 advisory vendor
• https://lists.debian.org/debian-lts-announce/2023/05/msg00018.html mailing list · advisory pihak ketiga
• https://security.gentoo.org/glsa/202311-02 issue tracking · advisory pihak ketiga
• https://www.debian.org/security/2023/dsa-5503 advisory pihak ketiga
• https://www.zerodayinitiative.com/advisories/ZDI-21-492/ advisory pihak ketiga · vdb entry