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68 lines
3.4 KiB
JSON
68 lines
3.4 KiB
JSON
{
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"id": "CVE-2024-30255",
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"sourceIdentifier": "security-advisories@github.com",
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"published": "2024-04-04T20:15:08.983",
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"lastModified": "2024-05-01T18:15:19.723",
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"vulnStatus": "Awaiting Analysis",
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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": "Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy's HTTP/2 codec allows the client to send an unlimited number of CONTINUATION frames even after exceeding Envoy's header map limits. This allows an attacker to send a sequence of CONTINUATION frames without the END_HEADERS bit set causing CPU utilization, consuming approximately 1 core per 300Mbit/s of traffic and culminating in denial of service through CPU exhaustion. Users should upgrade to version 1.29.3, 1.28.2, 1.27.4, or 1.26.8 to mitigate the effects of the CONTINUATION flood. As a workaround, disable HTTP/2 protocol for downstream connections."
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},
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{
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"lang": "es",
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"value": "Envoy es un proxy de servicio y borde de c\u00f3digo abierto, nativo de la nube. La pila de protocolos HTTP/2 en las versiones de Envoy anteriores a 1.29.3, 1.28.2, 1.27.4 y 1.26.8 son vulnerables al agotamiento de la CPU debido a la inundaci\u00f3n de tramas de CONTINUACI\u00d3N. El c\u00f3dec HTTP/2 de Envoy permite al cliente enviar un n\u00famero ilimitado de tramas de CONTINUACI\u00d3N incluso despu\u00e9s de exceder los l\u00edmites del mapa de encabezado de Envoy. Esto permite a un atacante enviar una secuencia de tramas CONTINUATION sin que el bit END_HEADERS est\u00e9 configurado causando la utilizaci\u00f3n de la CPU, consumiendo aproximadamente 1 n\u00facleo por cada 300 Mbit/s de tr\u00e1fico y culminando en una denegaci\u00f3n de servicio por agotamiento de la CPU. Los usuarios deben actualizar a la versi\u00f3n 1.29.3, 1.28.2, 1.27.4 o 1.26.8 para mitigar los efectos de la inundaci\u00f3n de CONTINUACI\u00d3N. Como workaround, deshabilite el protocolo HTTP/2 para conexiones descendentes."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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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": "LOW",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 3.9,
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"impactScore": 1.4
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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": "security-advisories@github.com",
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"type": "Secondary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-390"
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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": "http://www.openwall.com/lists/oss-security/2024/04/03/16",
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"source": "security-advisories@github.com"
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},
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{
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"url": "http://www.openwall.com/lists/oss-security/2024/04/05/3",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j654-3ccm-vfmm",
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"source": "security-advisories@github.com"
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}
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]
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} |