漏洞描述
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.
影响产品
暂无结构化产品信息。
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
www.openwall.comhttp://www.openwall.com/lists/oss-security/2021/12/19/1↗cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf↗cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-501673.pdf↗logging.apache.orghttps://logging.apache.org/log4j/2.x/security.html↗psirt.global.sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032↗security.netapp.comhttps://security.netapp.com/advisory/ntap-20211218-0001/↗tools.cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd↗www.debian.orghttps://www.debian.org/security/2021/dsa-5024↗www.kb.cert.orghttps://www.kb.cert.org/vuls/id/930724↗www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.html↗www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.html↗www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.html↗www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-1541/↗