mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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176 lines
5.1 KiB
JSON
176 lines
5.1 KiB
JSON
{
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"id": "CVE-2021-20317",
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"sourceIdentifier": "secalert@redhat.com",
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"published": "2021-09-27T11:15:07.357",
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"lastModified": "2022-06-14T11:15:09.137",
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"vulnStatus": "Modified",
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"descriptions": [
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{
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"lang": "en",
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"value": "A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP."
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},
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{
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"lang": "es",
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"value": "Se ha encontrado un fallo en el kernel de Linux. Un \u00e1rbol de temporizadores corrompido hac\u00eda que faltara el despertar de la tarea en la funci\u00f3n timerqueue_add en el archivo lib/timerqueue.c. Este defecto permite a un atacante local con privilegios de usuario especiales causar una denegaci\u00f3n de servicio, ralentizando y eventualmente deteniendo el sistema mientras se ejecuta OSP"
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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": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "HIGH",
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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": "HIGH",
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"baseScore": 4.4,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 0.8,
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"impactScore": 3.6
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}
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],
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"cvssMetricV2": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "2.0",
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"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
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"accessVector": "LOCAL",
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"accessComplexity": "LOW",
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"authentication": "NONE",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "COMPLETE",
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"baseScore": 4.9
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},
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"baseSeverity": "MEDIUM",
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"exploitabilityScore": 3.9,
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"impactScore": 6.9,
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"acInsufInfo": false,
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"obtainAllPrivilege": false,
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"obtainUserPrivilege": false,
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"obtainOtherPrivilege": false,
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"userInteractionRequired": false
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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": "secalert@redhat.com",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-665"
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}
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]
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},
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{
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"source": "nvd@nist.gov",
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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-665"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.4",
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"matchCriteriaId": "9121F506-8266-4787-ACB9-4221B549FA05"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:5.4:-:*:*:*:*:*:*",
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"matchCriteriaId": "4D70AB13-37BE-4BD3-A652-10191F1642E4"
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
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"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
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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": "https://bugzilla.redhat.com/show_bug.cgi?id=2005258",
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"source": "secalert@redhat.com",
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"tags": [
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"Issue Tracking",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
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"source": "secalert@redhat.com"
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},
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{
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"url": "https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=511885d7061eda3eb1faf3f57dcc936ff75863f1",
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"source": "secalert@redhat.com",
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"tags": [
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"Patch",
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"Vendor Advisory"
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]
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html",
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"source": "secalert@redhat.com",
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"tags": [
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"Mailing List",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html",
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"source": "secalert@redhat.com",
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"tags": [
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"Mailing List",
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"Third Party Advisory"
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]
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},
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{
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"url": "https://www.debian.org/security/2022/dsa-5096",
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"source": "secalert@redhat.com",
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"tags": [
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"Third Party Advisory"
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]
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}
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]
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} |