CVE-2021-45105Apache Log4j2 does not always protect from infinite recursion in lookup evaluation

Beschreibung

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.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://logging.apache.org/log4j/2.x/security.html
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032
• VU#930724 third-party-advisory
• 20211210 Vulnerabilities in Apache Log4j Library Affecting Cisco Products: December 2021 vendor-advisory
• [oss-security] 20211218 CVE-2021-45105: Apache Log4j2 does not always protect from infinite recursion in lookup evaluation mailing-list
• DSA-5024 vendor-advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf
• https://security.netapp.com/advisory/ntap-20211218-0001/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1541/
• https://cert-portal.siemens.com/productcert/pdf/ssa-501673.pdf
• https://www.oracle.com/security-alerts/cpujan2022.html
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujul2022.html