{"containers":{"cna":{"affected":[{"product":"fluentd","vendor":"fluent","versions":[{"status":"affected","version":">= 0.14.14, < 1.14.2"}]}],"descriptions":[{"lang":"en","value":"Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. The parser_apache2 plugin in Fluentd v0.14.14 to v1.14.1 suffers from a regular expression denial of service (ReDoS) vulnerability. A broken apache log with a certain pattern of string can spend too much time in a regular expression, resulting in the potential for a DoS attack. This issue is patched in version 1.14.2 There are two workarounds available. Either don't use parser_apache2 for parsing logs (which cannot guarantee generated by Apache), or put patched version of parser_apache2.rb into /etc/fluent/plugin directory (or any other directories specified by the environment variable `FLUENT_PLUGIN` or `--plugin` option of fluentd)."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2021-10-29T13:40:10.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/fluent/fluentd/security/advisories/GHSA-hwhf-64mh-r662"},{"tags":["x_refsource_MISC"],"url":"https://github.com/fluent/fluentd/blob/master/CHANGELOG.md#v1142"},{"tags":["x_refsource_MISC"],"url":"https://github.com/github/securitylab-vulnerabilities/blob/52dc4a2a828c6dc24231967c2937ad92038184a9/vendor_reports/GHSL-2021-102-fluent-fluentd.md"}],"source":{"advisory":"GHSA-hwhf-64mh-r662","discovery":"UNKNOWN"},"title":"ReDoS vulnerability in parser_apache2","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-41186","STATE":"PUBLIC","TITLE":"ReDoS vulnerability in parser_apache2"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"fluentd","version":{"version_data":[{"version_value":">= 0.14.14, < 1.14.2"}]}}]},"vendor_name":"fluent"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. 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Either don't use parser_apache2 for parsing logs (which cannot guarantee generated by Apache), or put patched version of parser_apache2.rb into /etc/fluent/plugin directory (or any other directories specified by the environment variable `FLUENT_PLUGIN` or `--plugin` option of fluentd)."}]},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-400: Uncontrolled Resource Consumption"}]}]},"references":{"reference_data":[{"name":"https://github.com/fluent/fluentd/security/advisories/GHSA-hwhf-64mh-r662","refsource":"CONFIRM","url":"https://github.com/fluent/fluentd/security/advisories/GHSA-hwhf-64mh-r662"},{"name":"https://github.com/fluent/fluentd/blob/master/CHANGELOG.md#v1142","refsource":"MISC","url":"https://github.com/fluent/fluentd/blob/master/CHANGELOG.md#v1142"},{"name":"https://github.com/github/securitylab-vulnerabilities/blob/52dc4a2a828c6dc24231967c2937ad92038184a9/vendor_reports/GHSL-2021-102-fluent-fluentd.md","refsource":"MISC","url":"https://github.com/github/securitylab-vulnerabilities/blob/52dc4a2a828c6dc24231967c2937ad92038184a9/vendor_reports/GHSL-2021-102-fluent-fluentd.md"}]},"source":{"advisory":"GHSA-hwhf-64mh-r662","discovery":"UNKNOWN"}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T03:08:31.511Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/fluent/fluentd/security/advisories/GHSA-hwhf-64mh-r662"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/fluent/fluentd/blob/master/CHANGELOG.md#v1142"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/github/securitylab-vulnerabilities/blob/52dc4a2a828c6dc24231967c2937ad92038184a9/vendor_reports/GHSL-2021-102-fluent-fluentd.md"}]}]},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2021-41186","datePublished":"2021-10-29T13:40:10.000Z","dateReserved":"2021-09-15T00:00:00.000Z","dateUpdated":"2024-08-04T03:08:31.511Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}