[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fXHz6DdFeJAYQv3AHEVhIuhzUtHlOPq4KNlCW43zPSfw":3,"g5a-risk:CVE-2020-28327":165},{"success":4,"data":5,"meta":163},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":40,"epssPercentile":27,"epssTimeSeries":41,"severity":42,"affectedProducts":43,"affectedProductsCount":54,"references":55,"referencesCount":54,"weaknesses":67,"weaknessesCount":76,"isActivelyExploited":77,"cisaInfo":27,"otxData":27,"relatedBlogPosts":78,"seoMetadata":79,"configurations":104,"relatedVendorCves":161,"notableEvents":162},"CVE-2020-28327","What is CVE-2020-28327?","A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new SIP Invite, Asterisk did not return the created dialog locked or referenced. This caused a gap between the creation of the dialog object, and its next use by the thread that created it. Depending on some off-nominal circumstances and timing, it was possible for another thread to free said dialog in this gap. Asterisk could then crash when the dialog object, or any of its dependent objects, were dereferenced or accessed next by the initial-creation thread. Note, however, that this crash can only occur when using a connection-oriented protocol (e.g., TCP or TLS, but not UDP) for SIP transport. Also, the remote client must be authenticated, or Asterisk must be configured for anonymous calling.","A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Ce...","2020-11-06T19:15:14.08","2024-08-15T12:44:24.983",5.3,"CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:L\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":30,"CVSSMetricV40":27},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":22,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","HIGH","LOW","NONE","UNCHANGED","MEDIUM",null,1.6,3.6,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":23,"ExploitabilityScore":38,"ImpactScore":39,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":21,"AccessComplexity":22,"Authentication":35,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":36,"BaseScore":37,"BaseSeverity":27,"Exploitability":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"CollateralDamagePotential":27,"TargetDistribution":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"EnvironmentalScore":27},"2.0","AV:N\u002FAC:H\u002FAu:S\u002FC:N\u002FI:N\u002FA:P","SINGLE","PARTIAL",2.1,3.9,2.9,0.01939,[40,40,40,40,40,40,40],"Medium",[44,49],{"vendor":45,"product":46,"version":47,"criteria":48,"vulnerable":4},"digium","certified_asterisk","16.8","cpe:2.3:a:digium:certified_asterisk:16.8:-:*:*:*:*:*:*",{"vendor":50,"product":51,"version":52,"criteria":53,"vulnerable":4},"sangoma","asterisk","*","cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",2,[56,62],{"url":57,"source":58,"tags":59},"http:\u002F\u002Fdownloads.asterisk.org\u002Fpub\u002Fsecurity\u002FAST-2020-001.html","Asterisk",[60,61],"Patch","Vendor Advisory",{"url":63,"source":58,"tags":64},"https:\u002F\u002Fissues.asterisk.org\u002Fjira\u002Fbrowse\u002FASTERISK-29057",[65,66,61],"Exploit","Issue Tracking",[68],{"id":69,"name":70,"description":71,"extendedDescription":72,"status":73,"abstraction":74,"structure":75},"CWE-404","Improper Resource Shutdown or Release","The product does not release or incorrectly releases a resource before it is made available for re-use.","When a resource is created or allocated, the developer is responsible for properly releasing the resource as well as accounting for all potential paths of expiration or invalidation, such as a set period of time or revocation.","Draft","Class","Simple",1,false,[],{"title":80,"metaDescription":81,"keywords":82,"canonicalUrl":83,"structuredData":84},"What is CVE-2020-28327? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-28327, a medium severity cyber security vulnerability from 2020. A res_pjsip_session crash was discovered in Asterisk Open...","CVE-2020-28327, CVE-2020-28327 vulnerability, CVE-2020-28327 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2020, CVSS score, exploit, patch, remediation, digium security, sangoma security, certified_asterisk vulnerability, asterisk vulnerability","\u002Fwhat-is\u002Fcve-2020-28327",{"@context":85,"@type":86,"headline":80,"description":81,"datePublished":10,"dateModified":11,"author":87,"publisher":91,"about":95,"mainEntityOfPage":99,"articleSection":102,"keywords":103},"https:\u002F\u002Fschema.org","TechArticle",{"@type":88,"name":89,"url":90},"Organization","Precursor 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