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vuln-nvd/data/2021/CVE-2021-3657.json
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{"affected":[{"affectedData":[{"product":"isync","vendor":"n/a","versions":[{"status":"affected","version":"isync 1.4.4"}]}],"source":"patrick@puiterwijk.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:isync_project:isync:*:*:*:*:*:*:*:*","matchCriteriaId":"EBCC36DB-990B-4BD1-B565-1C4C66F193BD","versionEndExcluding":"1.4.4","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","matchCriteriaId":"80E516C0-98A4-4ADE-B69F-66A772E2BAAA","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"142AD0DD-4CF3-4D74-9442-459CE3347E3A","vulnerable":true}],"negate":false,"operator":"OR"}]},{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"DEECE5FC-CACF-4496-A3E7-164736409252","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution."},{"lang":"es","value":"Se ha encontrado un fallo en mbsync versiones anteriores a 1.4.4. Debido al manejo inapropiado de literales IMAP extremadamente grandes ()=2GiB), los servidores IMAP maliciosos o comprometidos, e hipotéticamente incluso los remitentes de correo electrónico externos, podrían causar varios desbordamientos de búfer diferentes, que podrían ser explotados para una ejecución de código remota"}],"id":"CVE-2021-3657","lastModified":"2026-06-17T04:05:31.000","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"HIGH","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"PARTIAL","baseScore":7.5,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":10.0,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"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":"2022-02-18T18:15:09.603","references":[{"source":"patrick@puiterwijk.org","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2028932"},{"source":"patrick@puiterwijk.org","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html"},{"source":"patrick@puiterwijk.org","tags":["Third Party Advisory"],"url":"https://security.gentoo.org/glsa/202208-15"},{"source":"patrick@puiterwijk.org","tags":["Mailing List","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2021/12/03/1"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Third Party Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2028932"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://security.gentoo.org/glsa/202208-15"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"https://www.openwall.com/lists/oss-security/2021/12/03/1"}],"sourceIdentifier":"patrick@puiterwijk.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-119"}],"source":"patrick@puiterwijk.org","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-119"}],"source":"nvd@nist.gov","type":"Primary"}]}