[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f89QedJ09Z8uc2RlprMR1K-jMUeC4EbTsoVpWsW0nsWs":3,"g5a-risk:CVE-2023-7256":107},{"success":4,"data":5,"meta":104},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":37,"epssPercentile":27,"epssTimeSeries":38,"severity":39,"affectedProducts":40,"affectedProductsCount":46,"references":47,"referencesCount":56,"weaknesses":57,"weaknessesCount":46,"isActivelyExploited":66,"cisaInfo":27,"otxData":27,"relatedBlogPosts":67,"seoMetadata":68,"configurations":93,"relatedVendorCves":102,"notableEvents":103},"CVE-2023-7256","What is CVE-2023-7256?","In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrinfo(), but does not clearly indicate to the caller function whether freeaddrinfo() still remains to be called after the function returns.  This makes it possible in some scenarios that both the function and its caller call freeaddrinfo() for the same allocated memory block.  A similar problem was reported in Apple libpcap, to which Apple assigned CVE-2023-40400.","In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrin...","2024-08-31T00:15:05.24","2026-06-17T06:52:25.317",4.4,"CVSS:3.1\u002FAV:L\u002FAC:L\u002FPR:H\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":34,"CVSSMetricV2":35,"CVSSMetricV40":36},[16,30],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"security@tcpdump.org","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":24,"Scope":25,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","LOCAL","LOW","HIGH","NONE","UNCHANGED","MEDIUM",null,0.8,3.6,{"Source":31,"Type":32,"CVSSData":33,"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":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},[],[],[],0.00244,[37,37,37,37,37,37,37],"Medium",[41],{"vendor":42,"product":43,"version":44,"criteria":45,"vulnerable":4},"tcpdump","libpcap","*","cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*",1,[48,53],{"url":49,"source":50,"tags":51},"https:\u002F\u002Fgithub.com\u002Fthe-tcpdump-group\u002Flibpcap\u002Fcommit\u002F262e4f34979872d822ccedf9f318ed89c4d31c03","GitHub",[52],"Patch",{"url":54,"source":50,"tags":55},"https:\u002F\u002Fgithub.com\u002Fthe-tcpdump-group\u002Flibpcap\u002Fcommit\u002F2aa69b04d8173b18a0e3492e0c8f2f7fabdf642d",[52],2,[58],{"id":59,"name":60,"description":61,"extendedDescription":62,"status":63,"abstraction":64,"structure":65},"CWE-415","Double Free","The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.","When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.","Draft","Variant","Simple",false,[],{"title":69,"metaDescription":70,"keywords":71,"canonicalUrl":72,"structuredData":73},"What is CVE-2023-7256? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2023-7256, a medium severity cyber security vulnerability from 2024. In affected libpcap versions during the setup of a remote ...","CVE-2023-7256, CVE-2023-7256 vulnerability, CVE-2023-7256 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2024, CVSS score, exploit, patch, remediation, tcpdump security, libpcap vulnerability","\u002Fwhat-is\u002Fcve-2023-7256",{"@context":74,"@type":75,"headline":69,"description":70,"datePublished":10,"dateModified":11,"author":76,"publisher":80,"about":84,"mainEntityOfPage":88,"articleSection":91,"keywords":92},"https:\u002F\u002Fschema.org","TechArticle",{"@type":77,"name":78,"url":79},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":77,"name":78,"url":79,"logo":81},{"@type":82,"url":83},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":85,"name":6,"description":86,"additionalType":87},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":89,"@id":90},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2023-7256","Cybersecurity","CVE-2023-7256, CVE-2023-7256 vulnerability, CVE-2023-7256 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[94],{"Operator":27,"Negate":27,"Nodes":95},[96],{"Operator":97,"Negate":66,"CPEMatch":98},"OR",[99],{"Vulnerable":4,"Criteria":45,"MatchCriteriaID":100,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":101,"VersionEndIncluding":27},"83511DB8-7FA5-4C5D-8E9D-B6310A1006C4","1.10.5",[],[],{"lastModified":11,"cacheTime":105,"version":106},1792243874279,"2.0",{"score":108,"band":109,"action":110,"scoredAt":111},15,"Info","Track","2026-10-16T07:03:42.836005+00:00"]