224 lines
10 KiB
JSON
224 lines
10 KiB
JSON
{
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"containers": {
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"cna": {
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"affected": [
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{
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"product": "envoy",
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"vendor": "envoyproxy",
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"versions": [
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{
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"status": "affected",
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"version": ">= 1.19.0, < 1.19.1"
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},
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{
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"status": "affected",
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"version": ">= 1.18.0, < 1.18.4"
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},
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{
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"status": "affected",
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"version": ">= 1.17.0, < 1.17.4"
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},
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{
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"status": "affected",
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"version": ">= 1.16.0, < 1.16.5"
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}
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]
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions envoy’s procedure for resetting a HTTP/2 stream has O(N^2) complexity, leading to high CPU utilization when a large number of streams are reset. Deployments are susceptible to Denial of Service when Envoy is configured with high limit on H/2 concurrent streams. An attacker wishing to exploit this vulnerability would require a client opening and closing a large number of H/2 streams. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to reduce time complexity of resetting HTTP/2 streams. As a workaround users may limit the number of simultaneous HTTP/2 dreams for upstream and downstream peers to a low number, i.e. 100."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.8,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
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"version": "3.1"
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-834",
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"description": "CWE-834: Excessive Iteration",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"dateUpdated": "2021-08-24T20:30:11.000Z",
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M"
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},
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"references": [
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{
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history"
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},
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{
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc"
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}
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],
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"source": {
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"advisory": "GHSA-3xh3-33v5-chcc",
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"discovery": "UNKNOWN"
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},
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"title": "Excessive CPU utilization when closing HTTP/2 streams",
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"x_legacyV4Record": {
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"CVE_data_meta": {
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"ASSIGNER": "security-advisories@github.com",
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"ID": "CVE-2021-32778",
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"STATE": "PUBLIC",
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"TITLE": "Excessive CPU utilization when closing HTTP/2 streams"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "envoy",
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"version": {
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"version_data": [
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{
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"version_value": ">= 1.19.0, < 1.19.1"
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},
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{
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"version_value": ">= 1.18.0, < 1.18.4"
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},
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{
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"version_value": ">= 1.17.0, < 1.17.4"
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},
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{
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"version_value": ">= 1.16.0, < 1.16.5"
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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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"vendor_name": "envoyproxy"
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}
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]
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}
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},
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"data_format": "MITRE",
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"data_type": "CVE",
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"data_version": "4.0",
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions envoy’s procedure for resetting a HTTP/2 stream has O(N^2) complexity, leading to high CPU utilization when a large number of streams are reset. Deployments are susceptible to Denial of Service when Envoy is configured with high limit on H/2 concurrent streams. An attacker wishing to exploit this vulnerability would require a client opening and closing a large number of H/2 streams. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to reduce time complexity of resetting HTTP/2 streams. As a workaround users may limit the number of simultaneous HTTP/2 dreams for upstream and downstream peers to a low number, i.e. 100."
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}
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]
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},
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"impact": {
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"cvss": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.8,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
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"version": "3.1"
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}
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-834: Excessive Iteration"
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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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"reference_data": [
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{
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"name": "https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history",
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"refsource": "MISC",
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"url": "https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history"
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},
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{
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"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc",
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"refsource": "CONFIRM",
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"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc"
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}
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]
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},
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"source": {
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"advisory": "GHSA-3xh3-33v5-chcc",
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"discovery": "UNKNOWN"
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}
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}
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},
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"adp": [
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-03T23:33:55.854Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"tags": [
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"x_refsource_MISC",
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"x_transferred"
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],
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"url": "https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history"
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},
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{
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"tags": [
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"x_refsource_CONFIRM",
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"x_transferred"
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],
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"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc"
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}
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]
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}
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]
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},
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"cveMetadata": {
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"assignerShortName": "GitHub_M",
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"cveId": "CVE-2021-32778",
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"datePublished": "2021-08-24T20:30:11.000Z",
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"dateReserved": "2021-05-12T00:00:00.000Z",
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"dateUpdated": "2024-08-03T23:33:55.854Z",
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"state": "PUBLISHED"
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},
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1"
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} |