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CVE-2021-45105 Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Log4j2 2.17 | earliest → < 2.17.0 | 2.17.0 |
References
- logging.apache.org logging.apache.org
- psirt.global.sonicwall.com psirt.global.sonicwall.com
- VU#930724 www.kb.cert.org
- 20211210 Vulnerabilities in Apache Log4j Library Affecting Cisco Products: December 2021 tools.cisco.com
- [oss-security] 20211218 CVE-2021-45105: Apache Log4j2 does not always protect from infinite recursion in lookup evaluation www.openwall.com
- DSA-5024 www.debian.org
- cert-portal.siemens.com cert-portal.siemens.com
- security.netapp.com security.netapp.com
- www.zerodayinitiative.com www.zerodayinitiative.com
- cert-portal.siemens.com cert-portal.siemens.com
- www.oracle.com www.oracle.com
- www.oracle.com www.oracle.com
- www.oracle.com www.oracle.com
Timeline
- Published
- Last modified