Improper Input Validation Affecting apache-log4j2 package, versions <2.17.0-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-APACHELOG4J2-2321892
- published 19 Dec 2021
- disclosed 18 Dec 2021
How to fix?
Upgrade Debian:unstable apache-log4j2 to version 2.17.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream apache-log4j2 package and not the apache-log4j2 package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2021-45105
- https://security.netapp.com/advisory/ntap-20211218-0001/
- https://logging.apache.org/log4j/2.x/security.html
- 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://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032
- 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/