Use After Free in F5 Njs

CVE-2022-31307

Nginx NJS v0.7.2 was discovered to contain a segmentation violation in the function njs_string_offset at src/njs_string.c.

Vulnerability class: Use-After-Free

EPSS: 0.006 (46.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

F5 Njs — versions 0.7.2
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-31307?: CVE-2022-31307 is a medium-severity vulnerability in F5 Njs, classified under Use After Free. CVSS score: 5.5/10. Published 2022-06-21.
How severe is CVE-2022-31307?: Medium severity. CVSS v3 base score is 5.5 out of 10.