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106 lines
3.3 KiB
JSON
106 lines
3.3 KiB
JSON
{
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"id": "CVE-2018-20421",
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"sourceIdentifier": "cve@mitre.org",
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"published": "2018-12-24T03:29:00.353",
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"lastModified": "2019-10-03T00:03:26.223",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "Go Ethereum (aka geth) 1.8.19 allows attackers to cause a denial of service (memory consumption) by rewriting the length of a dynamic array in memory, and then writing data to a single memory location with a large index number, as demonstrated by use of \"assembly { mstore }\" followed by a \"c[0xC800000] = 0xFF\" assignment."
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},
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{
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"lang": "es",
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"value": "Go Ethereum (tambi\u00e9n conocido como geth) 1.8.19 permite que los atacantes provoquen una denegaci\u00f3n de servicio (consumo de memoria) mediante la reescritura de la longitud de un array din\u00e1mico en la memoria y, a continuaci\u00f3n, la escritura de datos a una \u00fanica ubicaci\u00f3n de memoria con un n\u00famero de \u00edndice largo. Esto queda demostrado por el uso de \"assembly { mstore }\", seguido por una asignaci\u00f3n \"c[0xC800000] = 0xFF\"."
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}
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],
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"metrics": {
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"cvssMetricV30": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.0",
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"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"exploitabilityScore": 3.9,
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"impactScore": 3.6
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}
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],
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"cvssMetricV2": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "2.0",
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"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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"accessVector": "NETWORK",
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"accessComplexity": "LOW",
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"authentication": "NONE",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "PARTIAL",
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"baseScore": 5.0
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},
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"baseSeverity": "MEDIUM",
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"exploitabilityScore": 10.0,
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"impactScore": 2.9,
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"acInsufInfo": false,
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"obtainAllPrivilege": false,
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"obtainUserPrivilege": false,
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"obtainOtherPrivilege": false,
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"userInteractionRequired": false
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-770"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:ethereum:go_ethereum:1.8.19:*:*:*:*:*:*:*",
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"matchCriteriaId": "62904AD1-8114-4802-94E1-D19C48CBF8FD"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/ethereum/go-ethereum/issues/18289",
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"source": "cve@mitre.org",
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"tags": [
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"Exploit",
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"Third Party Advisory"
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]
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}
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]
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} |