PT-2022-5120 · Qnap · Qnap Qvr Guard+2

Crixer · Published 2022-01-13 · Updated 2022-01-25 · CVE-2021-38691

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions QNAP QVR Elite versions prior to 2.1.4.0 QNAP QVR Pro versions prior to 2.1.3.0 QNAP QVR Guard versions prior to 2.1.3.0

Description The issue is related to a stack buffer overflow vulnerability in the memory, which can be exploited by a remote attacker to execute arbitrary code.

Recommendations For QNAP QVR Elite versions prior to 2.1.4.0, update to version 2.1.4.0 or later. For QNAP QVR Pro versions prior to 2.1.3.0, update to version 2.1.3.0 or later. For QNAP QVR Guard versions prior to 2.1.3.0, update to version 2.1.3.0 or later.

Fix

Memory Corruption

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-121

CWE-120

Related Identifiers

BDU:2022-06369

CVE-2021-38691

Affected Products

Qnap Qvr Elite

Qnap Qvr Guard

Qnap Qvr Pro

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-38691 · Security Note
• https://bdu.fstec.ru/vul/2022-06369 · Security Note
• https://qnap.com/en/security-advisory/qsa-21-59 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-38691 · Vendor Advisory