Use After Free in Zabbix

CVE-2024-42331

In the src/libs/zbxembed/browser.c file, the es_browser_ctor method retrieves a heap pointer from the Duktape JavaScript engine. This heap pointer is subsequently utilized by the browser_push_error method in the src/libs/zbxembed/browser_error.c file. A use-after-free bug can occur at this stage if the wd->browser heap pointer is freed by garbage collection.

Vulnerability class: Use-After-Free

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-42331?
CVE-2024-42331 is a low-severity vulnerability in Zabbix, classified under Use After Free. CVSS score: 3.3/10. Published 2024-11-27.
How severe is CVE-2024-42331?
Low severity. CVSS v3 base score is 3.3 out of 10.