CVE-2021-45105
- Source
- https://cve.org/CVERecord?id=CVE-2021-45105
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45105.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-45105
- Aliases
- Downstream
- Related
- Published
- 2021-12-18T12:15:07.433Z
- Modified
- 2026-02-28T08:05:59.105623Z
- 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
- http://www.openwall.com/lists/oss-security/2021/12/19/1
- 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.kb.cert.org/vuls/id/930724
- 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/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- http://www.openwall.com/lists/oss-security/2021/12/19/1
Affected packages
Git / github.com/apache/logging-log4j2
Affected versions
log4j-2.*
log4j-2.10-rc1
log4j-2.10.0
log4j-2.11.0
log4j-2.11.0-rc1
log4j-2.11.1
log4j-2.11.1-rc1
log4j-2.11.2
log4j-2.11.2-rc1
log4j-2.11.2-rc2
log4j-2.11.2-rc3
log4j-2.12.0
log4j-2.12.0-rc1
log4j-2.12.0-rc2
log4j-2.12.1
log4j-2.12.1-rc1
log4j-2.12.2-rc1
log4j-2.4
log4j-2.4.1
log4j-2.5
log4j-2.5-rc1
log4j-2.6
log4j-2.6-rc1
log4j-2.6.1
log4j-2.6.1-rc1
log4j-2.6.2
log4j-2.6.2-rc1
log4j-2.7
log4j-2.7-rc1
log4j-2.7-rc2
log4j-2.8
log4j-2.8-rc1
log4j-2.8.1
log4j-2.8.1-rc1
log4j-2.8.2
log4j-2.8.2-rc1
log4j-2.9-rc1
log4j-2.9.0
log4j-2.9.1-rc1
rel/2.*
rel/2.10.0
rel/2.11.0
rel/2.11.1
rel/2.11.2
rel/2.12.0
rel/2.12.1
rel/2.12.2
rel/2.4
rel/2.4.1
rel/2.5
rel/2.6
rel/2.6.1
rel/2.6.2
rel/2.7
rel/2.8
rel/2.8.1
rel/2.8.2
rel/2.9.0