Use After Free in F5 Njs

CVE-2022-27007

nginx njs 0.7.2 is affected suffers from Use-after-free in njs_function_frame_alloc() when it try to invoke from a restored frame saved with njs_function_frame_save().

Vulnerability class: Use-After-Free

EPSS: 0.016 (73.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

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

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2022-27007?
CVE-2022-27007 is a critical-severity vulnerability in F5 Njs, classified under Use After Free. CVSS score: 9.8/10. Published 2022-04-14.
How severe is CVE-2022-27007?
Critical severity. CVSS v3 base score is 9.8 out of 10.