147 lines
6.6 KiB
JSON
147 lines
6.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1",
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"cveMetadata": {
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"cveId": "CVE-2025-61771",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2025-09-30T19:43:49.900Z",
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"datePublished": "2025-10-07T14:42:53.366Z",
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"dateUpdated": "2025-10-07T17:52:09.399Z"
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},
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"containers": {
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"cna": {
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"title": "Rack's multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-400",
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"lang": "en",
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"description": "CWE-400: Uncontrolled Resource Consumption",
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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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"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": "HIGH",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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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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"name": "https://github.com/rack/rack/security/advisories/GHSA-w9pc-fmgc-vxvw",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/rack/rack/security/advisories/GHSA-w9pc-fmgc-vxvw"
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},
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{
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"name": "https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rack/rack/commit/589127f4ac8b5cf11cf88fb0cd116ffed4d2181e"
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},
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{
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"name": "https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rack/rack/commit/d869fed663b113b95a74ad53e1b5cae6ab31f29e"
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},
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{
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"name": "https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/rack/rack/commit/e08f78c656c9394d6737c022bde087e0f33336fd"
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}
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],
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"affected": [
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{
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"vendor": "rack",
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"product": "rack",
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"versions": [
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{
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"version": "< 2.2.19",
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"status": "affected"
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},
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{
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"version": ">= 3.1, < 3.1.17",
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"status": "affected"
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},
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{
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"version": ">= 3.2, < 3.2.2",
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"status": "affected"
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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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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2025-10-07T14:42:53.366Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, ``Rack::Multipart::Parser` stores non-file form fields (parts without a `filename`) entirely in memory as Ruby `String` objects. A single large text field in a multipart/form-data request (hundreds of megabytes or more) can consume equivalent process memory, potentially leading to out-of-memory (OOM) conditions and denial of service (DoS). Attackers can send large non-file fields to trigger excessive memory usage. Impact scales with request size and concurrency, potentially leading to worker crashes or severe garbage-collection overhead. All Rack applications processing multipart form submissions are affected. Versions 2.2.19, 3.1.17, and 3.2.2 enforce a reasonable size cap for non-file fields (e.g., 2 MiB). Workarounds include restricting maximum request body size at the web-server or proxy layer (e.g., Nginx `client_max_body_size`) and validating and rejecting unusually large form fields at the application level."
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}
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],
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"source": {
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"advisory": "GHSA-w9pc-fmgc-vxvw",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2025-10-07T17:51:58.348077Z",
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"id": "CVE-2025-61771",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-07T17:52:09.399Z"
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}
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}
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]
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}
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} |