{ "containers": { "cna": { "affected": [ { "product": "jsx-slack", "vendor": "yhatt", "versions": [ { "status": "affected", "version": "< 4.5.2" } ] } ], "descriptions": [ { "lang": "en", "value": "jsx-slack is a package for building JSON objects for Slack block kit surfaces from JSX. The maintainers found the patch for CVE-2021-43838 in jsx-slack v4.5.1 is insufficient tfor protection from a Regular Expression Denial of Service (ReDoS) attack. If an attacker can put a lot of JSX elements into `
` tag _with including multibyte characters_, an internal regular expression for escaping characters may consume an excessive amount of computing resources. v4.5.1 passes the test against ASCII characters but misses the case of multibyte characters. jsx-slack v4.5.2 has updated regular expressions for escaping blockquote characters to prevent catastrophic backtracking. It is also including an updated test case to confirm rendering multiple tags in `
` with multibyte characters." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption", "lang": "en", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-1333", "description": "CWE-1333: Inefficient Regular Expression Complexity", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-12-20T21:15:12.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-hp68-xhvj-x6j6" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/yhatt/jsx-slack/commit/46bc88391d89d5fda4ce689e18ca080bcdd29ecc" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/yhatt/jsx-slack/releases/tag/v4.5.2" } ], "source": { "advisory": "GHSA-hp68-xhvj-x6j6", "discovery": "UNKNOWN" }, "title": "Insufficient patch for Regular Expression Denial of Service (ReDoS) to jsx-slack v4.5.1", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-43843", "STATE": "PUBLIC", "TITLE": "Insufficient patch for Regular Expression Denial of Service (ReDoS) to jsx-slack v4.5.1" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "jsx-slack", "version": { "version_data": [ { "version_value": "< 4.5.2" } ] } } ] }, "vendor_name": "yhatt" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "jsx-slack is a package for building JSON objects for Slack block kit surfaces from JSX. The maintainers found the patch for CVE-2021-43838 in jsx-slack v4.5.1 is insufficient tfor protection from a Regular Expression Denial of Service (ReDoS) attack. If an attacker can put a lot of JSX elements into `
` tag _with including multibyte characters_, an internal regular expression for escaping characters may consume an excessive amount of computing resources. v4.5.1 passes the test against ASCII characters but misses the case of multibyte characters. jsx-slack v4.5.2 has updated regular expressions for escaping blockquote characters to prevent catastrophic backtracking. It is also including an updated test case to confirm rendering multiple tags in `
` with multibyte characters." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-400: Uncontrolled Resource Consumption" } ] }, { "description": [ { "lang": "eng", "value": "CWE-1333: Inefficient Regular Expression Complexity" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-hp68-xhvj-x6j6", "refsource": "CONFIRM", "url": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-hp68-xhvj-x6j6" }, { "name": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q", "refsource": "MISC", "url": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q" }, { "name": "https://github.com/yhatt/jsx-slack/commit/46bc88391d89d5fda4ce689e18ca080bcdd29ecc", "refsource": "MISC", "url": "https://github.com/yhatt/jsx-slack/commit/46bc88391d89d5fda4ce689e18ca080bcdd29ecc" }, { "name": "https://github.com/yhatt/jsx-slack/releases/tag/v4.5.2", "refsource": "MISC", "url": "https://github.com/yhatt/jsx-slack/releases/tag/v4.5.2" } ] }, "source": { "advisory": "GHSA-hp68-xhvj-x6j6", "discovery": "UNKNOWN" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T04:10:16.503Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-hp68-xhvj-x6j6" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/yhatt/jsx-slack/commit/46bc88391d89d5fda4ce689e18ca080bcdd29ecc" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/yhatt/jsx-slack/releases/tag/v4.5.2" } ] } ] }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-43843", "datePublished": "2021-12-20T21:15:12.000Z", "dateReserved": "2021-11-16T00:00:00.000Z", "dateUpdated": "2024-08-04T04:10:16.503Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }