[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fBCwftuj5XF4wp2rrrFC0UnwIDjcHBYQgLRIG-qAoEF4":3,"g5a-risk:CVE-2011-2189":256},{"success":4,"data":5,"meta":254},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":42,"epssPercentile":26,"epssTimeSeries":43,"severity":44,"affectedProducts":45,"affectedProductsCount":38,"references":83,"referencesCount":169,"weaknesses":170,"weaknessesCount":179,"isActivelyExploited":40,"cisaInfo":26,"otxData":26,"relatedBlogPosts":180,"seoMetadata":181,"configurations":206,"relatedVendorCves":245,"notableEvents":246},"CVE-2011-2189","What is CVE-2011-2189?","net\u002Fcore\u002Fnet_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.","net\u002Fcore\u002Fnet_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which 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limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.","Limited resources include memory, file system storage, database connection pool entries, and CPU. If an attacker can trigger the allocation of these limited resources, but the number or size of the resources is not controlled, then the attacker could cause a denial of service that consumes all available resources. This would prevent valid users from accessing the product, and it could potentially have an impact on the surrounding environment. For example, a memory exhaustion attack against an application could slow down the application as well as its host operating system.\nThere are at least three distinct scenarios which can commonly lead to resource exhaustion:\nResource exhaustion problems are often result due to an incorrect implementation of the following situations:","Draft","Class","Simple",1,[],{"title":182,"metaDescription":183,"keywords":184,"canonicalUrl":185,"structuredData":186},"What is CVE-2011-2189? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2011-2189, a high severity cyber security vulnerability from 2011. net\u002Fcore\u002Fnet_namespace.c in the Linux kernel 2.6.32 and earl...","CVE-2011-2189, CVE-2011-2189 vulnerability, CVE-2011-2189 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2011, CVSS score, exploit, patch, remediation, linux security, redhat security, canonical security, debian security, linux_kernel vulnerability, enterprise_linux vulnerability, enterprise_mrg vulnerability, ubuntu_linux vulnerability","\u002Fwhat-is\u002Fcve-2011-2189",{"@context":187,"@type":188,"headline":182,"description":183,"datePublished":10,"dateModified":11,"author":189,"publisher":193,"about":197,"mainEntityOfPage":201,"articleSection":204,"keywords":205},"https:\u002F\u002Fschema.org","TechArticle",{"@type":190,"name":191,"url":192},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":190,"name":191,"url":192,"logo":194},{"@type":195,"url":196},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":198,"name":6,"description":199,"additionalType":200},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":202,"@id":203},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2011-2189","Cybersecurity","CVE-2011-2189, CVE-2011-2189 vulnerability, CVE-2011-2189 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[207,215,223,235],{"Operator":26,"Negate":26,"Nodes":208},[209],{"Operator":210,"Negate":40,"CPEMatch":211},"OR",[212],{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":213,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":214},"4367A8B9-ABB9-4E4E-9A2A-85719CBE8DAC","2.6.32",{"Operator":26,"Negate":26,"Nodes":216},[217],{"Operator":210,"Negate":40,"CPEMatch":218},[219,221],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":220,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":222,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"C60FA8B1-1802-4522-A088-22171DCF7A93",{"Operator":26,"Negate":26,"Nodes":224},[225],{"Operator":210,"Negate":40,"CPEMatch":226},[227,229,231,233],{"Vulnerable":4,"Criteria":63,"MatchCriteriaID":228,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"A9BD9DD2-B468-4732-ABB1-742D83709B54",{"Vulnerable":4,"Criteria":66,"MatchCriteriaID":230,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"87614B58-24AB-49FB-9C84-E8DDBA16353B",{"Vulnerable":4,"Criteria":69,"MatchCriteriaID":232,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"EF49D26F-142E-468B-87C1-BABEA445255C",{"Vulnerable":4,"Criteria":72,"MatchCriteriaID":234,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"E4174F4F-149E-41A6-BBCC-D01114C05F38",{"Operator":26,"Negate":26,"Nodes":236},[237],{"Operator":210,"Negate":40,"CPEMatch":238},[239,241,243],{"Vulnerable":4,"Criteria":77,"MatchCriteriaID":240,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"8C757774-08E7-40AA-B532-6F705C8F7639",{"Vulnerable":4,"Criteria":79,"MatchCriteriaID":242,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"036E8A89-7A16-411F-9D31-676313BB7244",{"Vulnerable":4,"Criteria":82,"MatchCriteriaID":244,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"16F59A04-14CF-49E2-9973-645477EA09DA",[],[247],{"id":248,"eventType":249,"eventTime":250,"details":251,"label":252,"color":253},"e2146f00-b727-428f-8436-c8ece5b85872","HIGH_EPSS_DELTA","2026-06-16T04:06:54.516813+00:00","Daily EPSS score increased by 0.102 on 2023-12-30","EPSS Score Increased","red",{"lastModified":11,"cacheTime":255,"version":33},1792257678484,{"score":257,"band":258,"action":259,"scoredAt":260},48,"Medium","Plan remediation","2026-10-17T06:38:22.795011+00:00"]