[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSwi9g5TpXDWuaXEK1tw1CQ9HyhghKUd4LmnON2xP5bs":3,"g5a-risk:CVE-2017-5495":144},{"success":4,"data":5,"meta":142},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":38,"epssPercentile":15,"epssTimeSeries":39,"severity":40,"affectedProducts":41,"affectedProductsCount":46,"references":47,"referencesCount":87,"weaknesses":88,"weaknessesCount":46,"isActivelyExploited":97,"cisaInfo":15,"otxData":15,"relatedBlogPosts":98,"seoMetadata":99,"configurations":124,"relatedVendorCves":133,"notableEvents":134},"CVE-2017-5495","What is CVE-2017-5495?","All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet 'vty' CLI, leading to a Denial-of-Service of Quagga daemons, or even the entire host. When Quagga daemons are configured with their telnet CLI enabled, anyone who can connect to the TCP ports can trigger this vulnerability, prior to authentication. Most distributions restrict the Quagga telnet interface to local access only by default. The Quagga telnet interface 'vty' input buffer grows automatically, without bound, so long as a newline is not entered. This allows an attacker to cause the Quagga daemon to allocate unbounded memory by sending very long strings without a newline. Eventually the daemon is terminated by the system, or the system itself runs out of memory. This is fixed in Quagga 1.1.1 and Free Range Routing (FRR) Protocol Suite 2017-01-10.","All versions of Quagga, 0.93 through 1.1.0, are vulnerable to an unbounded memory allocation in the telnet 'vty' CLI, leading to a Denial-of-Service of Quagg...","2017-01-24T07:59:00.287","2025-04-20T01:37:25.86",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":29,"CVSSMetricV40":15},null,[17],{"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,[30],{"Source":18,"Type":19,"CVSSData":31,"BaseSeverity":26,"ExploitabilityScore":36,"ImpactScore":37,"ACInsufInfo":15,"ObtainAllPrivilege":15,"ObtainUserPrivilege":15,"ObtainOtherPrivilege":15,"UserInteractionRequired":15},{"Version":32,"VectorString":33,"AccessVector":22,"AccessComplexity":23,"Authentication":24,"ConfidentialityImpact":24,"IntegrityImpact":24,"AvailabilityImpact":34,"BaseScore":35,"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:C","COMPLETE",7.8,10,6.9,0.18803,[38,38,38,38,38,38,38],"High",[42],{"vendor":43,"product":43,"version":44,"criteria":45,"vulnerable":4},"quagga","*","cpe:2.3:a:quagga:quagga:*:*:*:*:*:*:*:*",1,[48,52,58,62,66,71,75,77,79,81,83,85],{"url":49,"source":50,"tags":51},"http:\u002F\u002Frhn.redhat.com\u002Ferrata\u002FRHSA-2017-0794.html","Red Hat",[],{"url":53,"source":54,"tags":55},"http:\u002F\u002Fsavannah.nongnu.org\u002Fforum\u002Fforum.php?forum_id=8783","Nongnu",[56,57],"Release Notes","Vendor Advisory",{"url":59,"source":60,"tags":61},"http:\u002F\u002Fwww.securityfocus.com\u002Fbid\u002F95745","Securityfocus",[],{"url":63,"source":64,"tags":65},"http:\u002F\u002Fwww.securitytracker.com\u002Fid\u002F1037688","Securitytracker",[],{"url":67,"source":68,"tags":69},"https:\u002F\u002Fgithub.com\u002Ffreerangerouting\u002Ffrr\u002Fpull\u002F63","GitHub",[70,57],"Patch",{"url":72,"source":73,"tags":74},"https:\u002F\u002Flists.quagga.net\u002Fpipermail\u002Fquagga-dev\u002F2017-January\u002F016586.html","Quagga",[],{"url":49,"source":50,"tags":76},[],{"url":53,"source":54,"tags":78},[56,57],{"url":59,"source":60,"tags":80},[],{"url":63,"source":64,"tags":82},[],{"url":67,"source":68,"tags":84},[70,57],{"url":72,"source":73,"tags":86},[],12,[89],{"id":90,"name":91,"description":92,"extendedDescription":93,"status":94,"abstraction":95,"structure":96},"CWE-119","Improper Restriction of Operations within the Bounds of a Memory Buffer","The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.","Stable","Class","Simple",false,[],{"title":100,"metaDescription":101,"keywords":102,"canonicalUrl":103,"structuredData":104},"What is CVE-2017-5495? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2017-5495, a high severity cyber security vulnerability from 2017. All versions of Quagga, 0.93 through 1.1.0, are vulnerable t...","CVE-2017-5495, CVE-2017-5495 vulnerability, CVE-2017-5495 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2017, CVSS score, exploit, patch, remediation, quagga security, quagga vulnerability","\u002Fwhat-is\u002Fcve-2017-5495",{"@context":105,"@type":106,"headline":100,"description":101,"datePublished":10,"dateModified":11,"author":107,"publisher":111,"about":115,"mainEntityOfPage":119,"articleSection":122,"keywords":123},"https:\u002F\u002Fschema.org","TechArticle",{"@type":108,"name":109,"url":110},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":108,"name":109,"url":110,"logo":112},{"@type":113,"url":114},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":116,"name":6,"description":117,"additionalType":118},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":120,"@id":121},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2017-5495","Cybersecurity","CVE-2017-5495, CVE-2017-5495 vulnerability, CVE-2017-5495 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[125],{"Operator":15,"Negate":15,"Nodes":126},[127],{"Operator":128,"Negate":15,"CPEMatch":129},"OR",[130],{"Vulnerable":4,"Criteria":45,"MatchCriteriaID":131,"VersionStartExcluding":15,"VersionStartIncluding":15,"VersionEndExcluding":15,"VersionEndIncluding":132},"7A460953-662D-47E0-B16E-06CFC2378895","1.1.0",[],[135],{"id":136,"eventType":137,"eventTime":138,"details":139,"label":140,"color":141},"2df1d700-204d-44f1-974b-e027ca7cdea4","HIGH_EPSS_DELTA","2026-06-16T04:06:21.838356+00:00","Daily EPSS score increased by 0.150 on 2023-12-30","EPSS Score Increased","red",{"lastModified":11,"cacheTime":143,"version":32},1792349873807,{"score":145,"band":146,"action":147,"scoredAt":148},48,"Medium","Plan remediation","2026-10-17T08:26:55.189377+00:00"]