CVE-2023-45288
Estado: AplazadaAlta (7.5)—💥 PoC
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 92%
- Percentil entre todas las CVEs puntuadas: 100
- Fecha de la puntuación: 30/9/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub
⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- http://www.openwall.com/lists/oss-security/2024/04/03/16
- http://www.openwall.com/lists/oss-security/2024/04/05/4
- https://go.dev/cl/576155
- https://go.dev/issue/65051
- https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT/
- https://pkg.go.dev/vuln/GO-2024-2687
- https://security.netapp.com/advisory/ntap-20240419-0009/
- http://www.openwall.com/lists/oss-security/2024/04/03/16
- http://www.openwall.com/lists/oss-security/2024/04/05/4
- https://go.dev/cl/576155
- https://go.dev/issue/65051
- https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT/
- https://pkg.go.dev/vuln/GO-2024-2687
- https://security.netapp.com/advisory/ntap-20240419-0009/
- https://www.kb.cert.org/vuls/id/421644
JSON original (NVD)
Mostrar
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"id": "CVE-2023-45288",
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{
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{
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},
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}
],
"version": "2.0.3",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
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{
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{
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{
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{
"name": "Response.Cookies"
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{
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{
"name": "Response.Write"
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{
"name": "ResponseController.EnableFullDuplex"
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{
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{
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{
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{
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{
"name": "ServeFile"
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{
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{
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{
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"name": "Server.Shutdown"
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{
"name": "SetCookie"
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{
"name": "Transport.CancelRequest"
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{
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"name": "Transport.RoundTrip"
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{
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{
"name": "http2gzipReader.Close"
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{
"name": "http2gzipReader.Read"
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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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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"affectedData": [
{
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],
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}
],
"published": "2024-04-04T21:15:16.113",
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2024/04/03/16",
"source": "security@golang.org"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/04/05/4",
"source": "security@golang.org"
},
{
"url": "https://go.dev/cl/576155",
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{
"url": "https://go.dev/issue/65051",
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{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT/",
"source": "security@golang.org"
},
{
"url": "https://pkg.go.dev/vuln/GO-2024-2687",
"source": "security@golang.org"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240419-0009/",
"source": "security@golang.org"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/04/03/16",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openwall.com/lists/oss-security/2024/04/05/4",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://go.dev/cl/576155",
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{
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"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://pkg.go.dev/vuln/GO-2024-2687",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240419-0009/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.kb.cert.org/vuls/id/421644",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Deferred",
"descriptions": [
{
"lang": "en",
"value": "An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection."
},
{
"lang": "es",
"value": "Un atacante puede hacer que un endpoint HTTP/2 lea cantidades arbitrarias de datos de encabezado enviando una cantidad excesiva de tramas de CONTINUACIÓN. Mantener el estado de HPACK requiere analizar y procesar todos los encabezados y tramas de CONTINUACIÓN en una conexión. Cuando los encabezados de una solicitud exceden MaxHeaderBytes, no se asigna memoria para almacenar los encabezados sobrantes, pero aún así se analizan. Esto permite a un atacante hacer que un endpoint HTTP/2 lea cantidades arbitrarias de datos de encabezado, todos asociados con una solicitud que será rechazada. Estos encabezados pueden incluir datos codificados por Huffman, cuya decodificación es significativamente más costosa para el receptor que para el atacante. La solución establece un límite en la cantidad de fotogramas de encabezado excedentes que procesaremos antes de cerrar una conexión."
}
],
"lastModified": "2026-06-17T06:28:35.580",
"sourceIdentifier": "security@golang.org"
}