279 lines
12 KiB
JSON
279 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-12254",
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"assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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"state": "PUBLISHED",
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"assignerShortName": "PSF",
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"dateReserved": "2024-12-05T16:17:55.154Z",
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"datePublished": "2024-12-06T15:19:41.576Z",
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"dateUpdated": "2026-07-31T14:08:25.397Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"modules": [
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"asyncio"
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],
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"platforms": [
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"MacOS",
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"Linux"
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],
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"product": "CPython",
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"repo": "https://github.com/python/cpython",
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"vendor": "Python Software Foundation",
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"versions": [
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{
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"version": "0",
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"lessThan": "3.12.9",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.13.0",
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"lessThan": "3.13.2",
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"status": "affected",
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"versionType": "python"
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},
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{
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"version": "3.14.0a1",
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"lessThan": "3.14.0a3",
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"status": "affected",
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"versionType": "python"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "reporter",
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"value": "J. Nick Koston"
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},
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{
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"lang": "en",
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"type": "coordinator",
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"value": "Seth Larson"
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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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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<div>Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writelines()\n method would not \"pause\" writing and signal to the Protocol to drain \nthe buffer to the wire once the write buffer reached the \"high-water \nmark\". Because of this, Protocols would not periodically drain the write\n buffer potentially leading to memory exhaustion.<br></div><div><br></div><div>This\n vulnerability likely impacts a small number of users, you must be using\n Python 3.12.0 or later, on macOS or Linux, using the asyncio module \nwith protocols, and using .writelines() method which had new \nzero-copy-on-write behavior in Python 3.12.0 and later. If not all of \nthese factors are true then your usage of Python is unaffected.</div><br>"
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}
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],
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"value": "Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writelines()\n method would not \"pause\" writing and signal to the Protocol to drain \nthe buffer to the wire once the write buffer reached the \"high-water \nmark\". Because of this, Protocols would not periodically drain the write\n buffer potentially leading to memory exhaustion.\n\n\n\n\n\nThis\n vulnerability likely impacts a small number of users, you must be using\n Python 3.12.0 or later, on macOS or Linux, using the asyncio module \nwith protocols, and using .writelines() method which had new \nzero-copy-on-write behavior in Python 3.12.0 and later. If not all of \nthese factors are true then your usage of Python is unaffected."
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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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-400",
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"description": "CWE-400 Uncontrolled Resource Consumption",
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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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"descriptions": [
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{
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"cweId": "CWE-770",
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"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
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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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"orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
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"shortName": "PSF",
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"dateUpdated": "2026-07-31T14:08:25.397Z"
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},
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"references": [
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{
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"tags": [
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"issue-tracking"
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],
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"url": "https://github.com/python/cpython/issues/127655"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/pull/127656"
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},
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{
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"tags": [
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"vendor-advisory"
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],
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"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/H4O3UBAOAQQXGT4RE3E4XQYR5XLROORB/"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/71e8429ac8e2adc10084ab5ec29a62f4b6671a82"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/9aa0deb2eef2655a1029ba228527b152353135b5"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/python/cpython/commit/e991ac8f2037d78140e417cc9a9486223eb3e786"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Unbounded memory buffering in SelectorSocketTransport.writelines()",
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"x_generator": {
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"engine": "Vulnogram 0.2.0"
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}
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},
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"adp": [
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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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"type": "CWE",
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"cweId": "CWE-770",
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"lang": "en",
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"description": "CWE-770 Allocation of Resources Without Limits or Throttling"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "python_software_foundation",
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"product": "cpython",
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"cpes": [
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"cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unknown",
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"versions": [
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{
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"version": "3.12.0",
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"status": "affected",
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"lessThan": "3.14.0a1",
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"versionType": "python"
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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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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.5,
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"attackVector": "NETWORK",
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"baseSeverity": "HIGH",
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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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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "NONE"
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}
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},
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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": "2024-12-06T15:35:11.234951Z",
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"id": "CVE-2024-12254",
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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": "2025-02-05T16:54:28.955Z"
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}
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},
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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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"url": "http://www.openwall.com/lists/oss-security/2024/12/06/1"
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},
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{
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"url": "https://security.netapp.com/advisory/ntap-20250404-0010/"
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}
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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": "2025-04-04T23:03:00.653Z"
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}
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}
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]
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}
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} |