CVE-2021-45105
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-45105
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-45105.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-45105
- Aliases
- Downstream
- Related
- Published
- 2021-12-18T12:15:07.433Z
- Modified
- 2025-11-25T10:20:26.731517Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- http://www.openwall.com/lists/oss-security/2021/12/19/1
- https://www.kb.cert.org/vuls/id/930724
- https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-501673.pdf
- https://logging.apache.org/log4j/2.x/security.html
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032
- https://security.netapp.com/advisory/ntap-20211218-0001/
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
- https://www.debian.org/security/2021/dsa-5024
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.zerodayinitiative.com/advisories/ZDI-21-1541/