CVE-2023-49275: Wazuh vulnerable to NULL Pointer Dereference in wazuh-analysisd
Wazuh is a free and open source platform used for threat prevention, detection, and response. A NULL pointer dereference was detected during fuzzing of the analysis engine, allowing malicious clients to DoS the analysis engine. The bug occurs when analysisd receives a syscollector message with the hotfix msgtype but lacking a timestamp. It uses cJSONGetObjectItem() to get the timestamp object item and dereferences it without checking for a NULL value. A malicious client can DoS the analysis engine. This vulnerability is fixed in 4.7.1.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2023-49275?
CVE-2023-49275 has a severity rating that may lead to denial of service (DoS) in Wazuh's analysis engine.
How do I fix CVE-2023-49275?
To address CVE-2023-49275, upgrade Wazuh to a version newer than 4.7.1.
What products are affected by CVE-2023-49275?
CVE-2023-49275 affects Wazuh versions from 3.2.0 to 4.7.1.
What type of attack does CVE-2023-49275 enable?
CVE-2023-49275 allows attackers to perform denial of service attacks against the Wazuh analysis engine.
What is a NULL pointer dereference in the context of CVE-2023-49275?
In the context of CVE-2023-49275, a NULL pointer dereference occurs when the analysis engine attempts to access memory that has not been allocated, leading to a crash.