Null Dereference DoS in QNAP OS 5.1.2.2533 via Auth Admin
CVE-2023-41274 Published on February 2, 2024
QTS, QuTS hero, QuTScloud
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to launch a denial-of-service (DoS) attack via a network.
We have already fixed the vulnerability in the following versions:
QTS 5.1.2.2533 build 20230926 and later
QuTS hero h5.1.2.2534 build 20230927 and later
QuTScloud c5.1.5.2651 and later
Vulnerability Analysis
CVE-2023-41274 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity and availability.
Weakness Type
NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
Products Associated with CVE-2023-41274
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Affected Versions
QNAP Systems Inc. QTS:- Version 5.1.x and below 5.1.2.2533 build 20230926 is affected.
- Version h5.1.x and below h5.1.2.2534 build 20230927 is affected.
- Version c5.x.x and below c5.1.5.2651 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.