[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fnGA7hQh_z7dbqzLB-VRH5ooxYQAw0R8AkpPJMs7yXMg":3,"g5a-risk:CVE-2018-5739":111},{"success":4,"data":5,"meta":109},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":47,"epssPercentile":15,"epssTimeSeries":48,"severity":49,"affectedProducts":50,"affectedProductsCount":56,"references":57,"referencesCount":56,"weaknesses":63,"weaknessesCount":56,"isActivelyExploited":72,"cisaInfo":15,"otxData":15,"relatedBlogPosts":73,"seoMetadata":74,"configurations":99,"relatedVendorCves":107,"notableEvents":108},"CVE-2018-5739","What is CVE-2018-5739?","An extension to hooks capabilities which debuted in Kea 1.4.0 introduced a memory leak for operators who are using certain hooks library facilities. In order to support multiple requests simultaneously, Kea 1.4 added a callout handle store but unfortunately the initial implementation of this store does not properly free memory in every case. Hooks which make use of query4 or query6 parameters in their callouts can leak memory, resulting in the eventual exhaustion of available memory and subsequent failure of the server process. Affects Kea DHCP 1.4.0.","An extension to hooks capabilities which debuted in Kea 1.4.0 introduced a memory leak for operators who are using certain hooks library facilities. In order...","2019-01-16T20:29:00.94","2019-10-09T23:41:33.423",7.5,"CVSS:3.0\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":16,"CVSSMetricV2":38,"CVSSMetricV40":15},null,[17,29],{"Source":18,"Type":19,"CVSSData":20,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":21,"VectorString":13,"AttackVector":22,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":26,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":15,"RemediationLevel":15,"ReportConfidence":15,"TemporalScore":15,"TemporalSeverity":15,"ConfidentialityRequirement":15,"IntegrityRequirement":15,"AvailabilityRequirement":15,"ModifiedAttackVector":15,"ModifiedAttackComplexity":15,"ModifiedPrivilegesRequired":15,"ModifiedUserInteraction":15,"ModifiedScope":15,"ModifiedConfidentialityImpact":15,"ModifiedIntegrityImpact":15,"ModifiedAvailabilityImpact":15,"EnvironmentalScore":15,"EnvironmentalSeverity":15},"3.0","NETWORK","LOW","NONE","UNCHANGED","HIGH",3.9,3.6,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":37,"ImpactScore":28},"security-officer@isc.org","Secondary",{"Version":21,"VectorString":33,"AttackVector":34,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":26,"BaseScore":35,"BaseSeverity":36,"ExploitCodeMaturity":15,"RemediationLevel":15,"ReportConfidence":15,"TemporalScore":15,"TemporalSeverity":15,"ConfidentialityRequirement":15,"IntegrityRequirement":15,"AvailabilityRequirement":15,"ModifiedAttackVector":15,"ModifiedAttackComplexity":15,"ModifiedPrivilegesRequired":15,"ModifiedUserInteraction":15,"ModifiedScope":15,"ModifiedConfidentialityImpact":15,"ModifiedIntegrityImpact":15,"ModifiedAvailabilityImpact":15,"EnvironmentalScore":15,"EnvironmentalSeverity":15},"CVSS:3.0\u002FAV:A\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H","ADJACENT_NETWORK",6.5,"MEDIUM",2.8,[39],{"Source":18,"Type":19,"CVSSData":40,"BaseSeverity":36,"ExploitabilityScore":45,"ImpactScore":46,"ACInsufInfo":15,"ObtainAllPrivilege":15,"ObtainUserPrivilege":15,"ObtainOtherPrivilege":15,"UserInteractionRequired":15},{"Version":41,"VectorString":42,"AccessVector":22,"AccessComplexity":23,"Authentication":24,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":43,"BaseScore":44,"BaseSeverity":15,"Exploitability":15,"RemediationLevel":15,"ReportConfidence":15,"TemporalScore":15,"CollateralDamagePotential":15,"TargetDistribution":15,"ConfidentialityRequirement":15,"IntegrityRequirement":15,"AvailabilityRequirement":15,"EnvironmentalScore":15},"2.0","AV:N\u002FAC:L\u002FAu:N\u002FC:N\u002FI:N\u002FA:P","PARTIAL",5,10,2.9,0.01891,[47,47,47,47,47,47,47],"High",[51],{"vendor":52,"product":53,"version":54,"criteria":55,"vulnerable":4},"isc","kea","1.4.0","cpe:2.3:a:isc:kea:1.4.0:*:*:*:*:*:*:*",1,[58],{"url":59,"source":60,"tags":61},"https:\u002F\u002Fkb.isc.org\u002Fdocs\u002Faa-01626","Isc",[62],"Vendor Advisory",[64],{"id":65,"name":66,"description":67,"extendedDescription":68,"status":69,"abstraction":70,"structure":71},"CWE-772","Missing Release of Resource after Effective Lifetime","The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.","When a resource is not released after use, it can allow attackers to cause a denial of service by causing the allocation of resources without triggering their release. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.","Draft","Base","Simple",false,[],{"title":75,"metaDescription":76,"keywords":77,"canonicalUrl":78,"structuredData":79},"What is CVE-2018-5739? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2018-5739, a high severity cyber security vulnerability from 2019. An extension to hooks capabilities which debuted in Kea 1.4....","CVE-2018-5739, CVE-2018-5739 vulnerability, CVE-2018-5739 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2019, CVSS score, exploit, patch, remediation, isc security, kea vulnerability","\u002Fwhat-is\u002Fcve-2018-5739",{"@context":80,"@type":81,"headline":75,"description":76,"datePublished":10,"dateModified":11,"author":82,"publisher":86,"about":90,"mainEntityOfPage":94,"articleSection":97,"keywords":98},"https:\u002F\u002Fschema.org","TechArticle",{"@type":83,"name":84,"url":85},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":83,"name":84,"url":85,"logo":87},{"@type":88,"url":89},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":91,"name":6,"description":92,"additionalType":93},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":95,"@id":96},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2018-5739","Cybersecurity","CVE-2018-5739, CVE-2018-5739 vulnerability, CVE-2018-5739 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[100],{"Operator":15,"Negate":15,"Nodes":101},[102],{"Operator":103,"Negate":15,"CPEMatch":104},"OR",[105],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":106,"VersionStartExcluding":15,"VersionStartIncluding":15,"VersionEndExcluding":15,"VersionEndIncluding":15},"E0A6F1B5-E158-4C10-9C2D-57CEF9B8CF9E",[],[],{"lastModified":11,"cacheTime":110,"version":41},1792240267596,{"score":112,"band":113,"action":114,"scoredAt":115},47,"Medium","Plan remediation","2026-10-16T06:45:24.823737+00:00"]