mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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324 lines
9.8 KiB
JSON
324 lines
9.8 KiB
JSON
{
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"id": "CVE-2021-21703",
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"sourceIdentifier": "security@php.net",
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"published": "2021-10-25T06:15:06.563",
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"lastModified": "2022-10-29T02:44:23.830",
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"vulnStatus": "Analyzed",
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"descriptions": [
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{
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"lang": "en",
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"value": "In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user."
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},
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{
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"lang": "es",
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"value": "En PHP versiones 7.3.x hasta 7.3.31 incluy\u00e9ndola, versiones 7.4.x y por debajo de 7.4.25 y versiones 8.0.x por debajo de 8.0. 12, cuando es ejecutado PHP FPM SAPI con el proceso demonio FPM principal ejecutado como root y los procesos worker hijos ejecutados como usuarios menos privilegiados, es posible que los procesos hijos accedan a la memoria compartida con el proceso principal y escriban en ella, modific\u00e1ndola de forma que causar\u00eda que el proceso root realizara lecturas y escrituras de memoria no v\u00e1lidas, que puede ser usado para escalar los privilegios del usuario local sin privilegios al usuario root"
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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:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"attackVector": "LOCAL",
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"attackComplexity": "HIGH",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 7.0,
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"baseSeverity": "HIGH"
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},
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"exploitabilityScore": 1.0,
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"impactScore": 5.9
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},
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{
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"source": "security@php.net",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
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"attackVector": "LOCAL",
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"attackComplexity": "HIGH",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "CHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"exploitabilityScore": 1.1,
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"impactScore": 6.0
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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:M/Au:N/C:C/I:C/A:C",
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"accessVector": "LOCAL",
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"accessComplexity": "MEDIUM",
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"authentication": "NONE",
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"confidentialityImpact": "COMPLETE",
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"integrityImpact": "COMPLETE",
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"availabilityImpact": "COMPLETE",
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"baseScore": 6.9
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},
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"baseSeverity": "MEDIUM",
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"exploitabilityScore": 3.4,
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"impactScore": 10.0,
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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": "nvd@nist.gov",
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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-787"
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}
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]
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},
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{
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"source": "security@php.net",
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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-284"
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},
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{
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"lang": "en",
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"value": "CWE-787"
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "7.3.0",
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"versionEndIncluding": "7.3.31",
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"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "7.4.0",
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"versionEndExcluding": "7.4.25",
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"vulnerable": true,
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"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "8.0.0",
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"versionEndExcluding": "8.0.12",
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"matchCriteriaId": "5633A8ED-60EF-4F14-A120-82A36BBD55A8"
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"cpeMatch": [
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
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"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
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"vulnerable": true,
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"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
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"matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"
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"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*",
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"matchCriteriaId": "1FE996B1-6951-4F85-AA58-B99A379D2163"
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"criteria": "cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "8.0.0.0",
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"versionEndIncluding": "8.5.0.2",
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],
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"references": [
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{
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"url": "http://www.openwall.com/lists/oss-security/2021/10/26/7",
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"source": "security@php.net",
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"tags": [
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"Mailing List",
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"Patch",
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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://bugs.php.net/bug.php?id=81026",
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"source": "security@php.net",
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"tags": [
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"Exploit",
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"Issue Tracking",
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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/2021/10/msg00021.html",
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"source": "security@php.net",
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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.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PZVLICZUJMXOGWOUWSBAEGIVTF6Y6V3/",
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"source": "security@php.net",
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JO5RA6YOBGGGKLIA6F6BQRZDDECF5L3R/",
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"source": "security@php.net",
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"tags": [
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"source": "security@php.net",
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"tags": [
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]
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},
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{
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"url": "https://security.gentoo.org/glsa/202209-20",
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"source": "security@php.net",
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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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"url": "https://security.netapp.com/advisory/ntap-20211118-0003/",
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"source": "security@php.net",
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"tags": [
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]
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},
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{
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"url": "https://www.debian.org/security/2021/dsa-4992",
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"source": "security@php.net",
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"tags": [
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]
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},
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{
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"url": "https://www.debian.org/security/2021/dsa-4993",
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"source": "security@php.net",
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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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"url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
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"source": "security@php.net",
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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://www.oracle.com/security-alerts/cpujan2022.html",
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"source": "security@php.net",
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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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} |