Vulnerability Details : CVE-2023-33657
Potential exploit
A use-after-free vulnerability exists in NanoMQ 0.17.2. The vulnerability can be triggered by calling the function nni_mqtt_msg_get_publish_property() in the file mqtt_msg.c. This vulnerability is caused by improper data tracing, and an attacker could exploit it to cause a denial of service attack.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2023-33657
- cpe:2.3:a:emqx:nanomq:0.17.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-33657
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-33657
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-01-06 |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2023-33657
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-33657
-
https://github.com/emqx/nanomq/issues/1165#issue-1668648319
[Security]: wrong protocol name & data racing · Issue #1165 · emqx/nanomq · GitHubExploit;Issue Tracking
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https://github.com/emqx/nanomq
GitHub - emqx/nanomq: An ultra-lightweight and blazing-fast MQTT broker for IoT edgeProduct
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https://github.com/emqx/nanomq/pull/1187
Fix data racing on retain msg by JaylinYu · Pull Request #1187 · emqx/nanomq · GitHubPatch
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