Use After Free in F5 Njs
CVE-2022-31306
Nginx NJS v0.7.2 was discovered to contain a segmentation violation in the function njs_array_convert_to_slow_array at src/njs_array.c.
Vulnerability class: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (49.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- F5 Njs — versions 0.7.2
Weakness classification (CWE)
References
- github.com/nginx/njs/issues/481 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/nginx/njs/commit/81af26364c21c196dd21fb5e14c7fa9ce7debd17 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31306?
- CVE-2022-31306 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-2022-31306?
- Medium severity. CVSS v3 base score is 5.5 out of 10.