CVE-2021-45105

Apache Log4j2 does not always protect from infinite recursion in lookup evaluation

MEDIUM 5.9

En bref

Source: NVD
EPSS: EPSS 100.00 % · centile 100 (2026-10-28)
État: PUBLISHED
Publiée: 2021-12-18 11:55 UTC
Mise à jour: 2026-05-29 11:45 UTC
Attribuée par: apache
Statut NVD: Modified

Description

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

Faiblesses (CWE)

CWE-20 — Validation d'entrée incorrecte
CWE-674 — Récursion non maîtrisée

Références

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	MEDIUM 5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP
CVSS 3.1	MEDIUM 5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	MEDIUM 5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
CVSS 2.0	MEDIUM 4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P	NVD · nvd@nist.gov (Primary)

Avis

GHSA-p6xc-xr62-6r2g — Apache Log4j2 vulnerable to Improper Input Validation and Uncontrolled Recursion

Références européennes

ENISA EUVD · EUVD-2021-2559
GCVE · GCVE-0-2021-45105

Avis du CERT-FR

CERTFR-2025-AVI-0855 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
CERTFR-2025-AVI-0756 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2022-AVI-717 — Multiples vulnérabilités dans les produits Schneider · cert.ssi.gouv.fr
CERTFR-2022-AVI-570 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2022-AVI-568 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2022-AVI-526 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2022-AVI-125 — Multiples vulnérabilités dans les produits SAP · cert.ssi.gouv.fr
CERTFR-2022-AVI-1027 — Multiples vulnérabilités dans IBM Db2 · cert.ssi.gouv.fr
CERTFR-2021-ALE-022 — [MaJ] Vulnérabilité dans Apache Log4j · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:* ≥ 2.0 < 2.3.1
cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:* ≥ 2.4 < 2.12.3
cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:* ≥ 2.13.0 ≤ 2.16.0
cpe:2.3:a:netapp:cloud_manager:-:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:* ≤ 10.0.12
cpe:2.3:a:sonicwall:network_security_manager:*:*:*:*:on-premises:*:*:* ≥ 2.0 < 3.0
cpe:2.3:a:sonicwall:network_security_manager:*:*:*:*:saas:*:*:* ≥ 2.0 < 3.0
cpe:2.3:a:sonicwall:web_application_firewall:*:*:*:*:*:*:*:* ≥ 3.0.0 < 3.1.0
cpe:2.3:o:sonicwall:6bk1602-0aa12-0tp0_firmware:*:*:*:*:*:*:*:* < 2.7.0
cpe:2.3:o:sonicwall:6bk1602-0aa22-0tp0_firmware:*:*:*:*:*:*:*:* < 2.7.0
cpe:2.3:o:sonicwall:6bk1602-0aa32-0tp0_firmware:*:*:*:*:*:*:*:* < 2.7.0
cpe:2.3:o:sonicwall:6bk1602-0aa42-0tp0_firmware:*:*:*:*:*:*:*:* < 2.7.0
cpe:2.3:o:sonicwall:6bk1602-0aa52-0tp0_firmware:*:*:*:*:*:*:*:* < 2.7.0
cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_plm_mcad_connector:3.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:*
cpe:2.3:a:oracle:autovue_for_agile_product_lifecycle_management:21.0.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_deposits_and_lines_of_credit_servicing:2.12.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_enterprise_default_management:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_enterprise_default_management:2.12.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_loans_servicing:2.12.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_party_management:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_payments:14.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_platform:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_platform:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_platform:2.12.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_trade_finance:14.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:banking_treasury_management:14.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:business_intelligence:5.5.0.0.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:communications_asap:7.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.4:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.5:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_console:1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*
+168 autres

Produits affectés

Produit	Versions
Apache Software Foundation · Apache Log4j2	affected log4j-core < 2.17.0

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD