2 lines
4.5 KiB
JSON
2 lines
4.5 KiB
JSON
{"affected":[{"affectedData":[{"product":"PHP","vendor":"PHP Group","versions":[{"lessThan":"7.4.28","status":"affected","version":"7.4.x","versionType":"custom"},{"lessThan":"8.0.16","status":"affected","version":"8.0.X","versionType":"custom"},{"lessThan":"8.1.3","status":"affected","version":"8.1.X","versionType":"custom"}]}],"source":"security@php.net"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*","matchCriteriaId":"07B88F14-3867-49F4-8BE6-64E1D98927AB","versionEndExcluding":"7.4.28","versionStartIncluding":"7.4.0","vulnerable":true},{"criteria":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*","matchCriteriaId":"AC80C1D0-09AC-43B1-A653-7ECFB37DC42E","versionEndExcluding":"8.0.16","versionStartIncluding":"8.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*","matchCriteriaId":"B7E795BC-F012-4904-B445-D76E358EC66D","versionEndExcluding":"8.1.3","versionStartIncluding":"8.1.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"In PHP versions 7.4.x below 7.4.28, 8.0.x below 8.0.16, and 8.1.x below 8.1.3, when using filter functions with FILTER_VALIDATE_FLOAT filter and min/max limits, if the filter fails, there is a possibility to trigger use of allocated memory after free, which can result it crashes, and potentially in overwrite of other memory chunks and RCE. This issue affects: code that uses FILTER_VALIDATE_FLOAT with min/max limits."},{"lang":"es","value":"En PHP versiones 7.4.x anteriores a 7.4.28, versiones 8.0.x anteriores a 8.0.16 y versiones 8.1.x anteriores a 8.1.3, cuando son usados funciones de filtrado con el filtro FILTER_VALIDATE_FLOAT y los límites mínimo/máximo, si el filtro falla, se presenta la posibilidad de que sea activado el uso de la memoria asignada después de liberarla, lo que puede resultar en un bloqueo, y potencialmente la sobreescritura de otros trozos de memoria y RCE. Este problema afecta a: el código que usa FILTER_VALIDATE_FLOAT con límites mín/máx."}],"id":"CVE-2021-21708","lastModified":"2026-06-17T03:36:02.283","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"MEDIUM","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":6.8,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":8.6,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"exploitabilityScore":3.9,"impactScore":4.2,"source":"security@php.net","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2022-02-27T08:15:06.817","references":[{"source":"security@php.net","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"url":"https://bugs.php.net/bug.php?id=81708"},{"source":"security@php.net","tags":["Third Party Advisory"],"url":"https://security.gentoo.org/glsa/202209-20"},{"source":"security@php.net","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20220325-0004/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"],"url":"https://bugs.php.net/bug.php?id=81708"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.gentoo.org/glsa/202209-20"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.netapp.com/advisory/ntap-20220325-0004/"}],"sourceIdentifier":"security@php.net","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-416"}],"source":"security@php.net","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-416"}],"source":"nvd@nist.gov","type":"Primary"}]}
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