Cyber Resilience

CVE-2021-20227

Medium

Published: 23 March 2021

Published
23 March 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0077 74.0th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-20227 is a medium-severity Use After Free (CWE-416) vulnerability in Oracle Communications Network Charging And Control. Its CVSS base score is 5.5 (Medium).

Operationally, ranked in the top 26.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A flaw was found in SQLite's SELECT query functionality (src/select.c). This flaw allows an attacker who is capable of running SQL queries locally on the SQLite database to cause a denial of service or possible code execution by triggering a…

more

use-after-free. The highest threat from this vulnerability is to system availability.

CWE(s)
CWE-416

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

sqlite
sqlite
3.33.0 — 3.34.1
oracle
communications network charging and control
6.0.1 · 12.0.1.0 — 12.0.4.0.0
oracle
enterprise manager for oracle database
13.4.0.0
oracle
jd edwards enterpriseone tools
≤ 9.2.6.0
oracle
mysql workbench
≤ 8.0.26
oracle
outside in technology
8.5.5
oracle
zfs storage appliance kit
8.8

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.

References