CVE-2024-42491

{"id": "CVE-2024-42491", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.7, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.1}]}, "published": "2024-09-05T18:15:05.707", "references": [{"url": "https://github.com/asterisk/asterisk/commit/42a2f4ccfa2c7062a15063e765916b3332e34cc4", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/commit/4f01669c7c41c9184f3cce9a3cf1b2ebf6201742", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/commit/50bf8d4d3064930d28ecf1ce3397b14574d514d2", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/commit/7a0090325bfa9d778a39ae5f7d0a98109e4651c8", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/commit/a15050650abf09c10a3c135fab148220cd41d3a0", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-v428-g3cw-7hv9", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-252"}, {"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.24.3, 20.9.3, and 21.4.3 of Asterisk and versions 18.9-cert12 and 20.7-cert2 of certified-asterisk, if Asterisk attempts to send a SIP request to a URI whose host portion starts with `.1` or `[.1]`, and res_resolver_unbound is loaded, Asterisk will crash with a SEGV. To receive a patch, users should upgrade to one of the following versions: 18.24.3, 20.9.3, 21.4.3, certified-18.9-cert12, certified-20.7-cert2. Two workarounds are available. Disable res_resolver_unbound by setting `noload = res_resolver_unbound.so` in modules.conf, or set `rewrite_contact = yes` on all PJSIP endpoints. NOTE: This may not be appropriate for all Asterisk configurations."}, {"lang": "es", "value": "Asterisk es una centralita privada (PBX) de c\u00f3digo abierto. En versiones anteriores a las 18.24.3, 20.9.3 y 21.4.3 de Asterisk y las versiones 18.9-cert12 y 20.7-cert2 de certificate-asterisk, si Asterisk intenta enviar una solicitud SIP a una URI cuya parte de host comienza con `.1` o `[.1]`, y res_resolver_unbound est\u00e1 cargado, Asterisk se bloquear\u00e1 con un SEGV. Para recibir un parche, los usuarios deben actualizar a una de las siguientes versiones: 18.24.3, 20.9.3, 21.4.3, certificate-18.9-cert12, certificate-20.7-cert2. Hay dos workarounds disponibles. Deshabilite res_resolver_unbound configurando `noload = res_resolver_unbound.so` en modules.conf, o configure `rewrite_contact = yes` en todos los endpoints PJSIP. NOTA: Esto puede no ser apropiado para todas las configuraciones de Asterisk."}], "lastModified": "2025-08-26T17:47:36.190", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5755DE4B-FD1C-4B6B-86B8-FC1FD90717B4", "versionEndExcluding": "18.24.3"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "089E3015-4E8B-4ADE-9C14-9F2CE78986F1", "versionEndExcluding": "20.9.3", "versionStartIncluding": "20.0.0"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC916081-F612-4234-A7BB-BB1614154A28", "versionEndIncluding": "21.4.3", "versionStartIncluding": "21.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B71A493F-F47B-4F19-AD21-3800DE63DF5A", "versionEndExcluding": "18.9"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2A7FA28D-33B7-4F20-8235-E66C21019875"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79EEB5E5-B79E-454B-8DCD-3272BA337A9E"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1-rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD3BBA39-95EC-462F-8F5A-15E8D07CC804"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D6BF553C-020D-4F99-9995-CA4A4383B2DD"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert11:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E3069F1F-DDE8-4E9A-B4FF-64B7B11EEFCB"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "892BAE5D-A64E-4FE0-9A99-8C07F342A042"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A716A45-7075-4CA6-9EF5-2DD088248A5C"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "80EFA05B-E22D-49CE-BDD6-5C7123F1C12B"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20FD475F-2B46-47C9-B535-1561E29CB7A1"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7238FCD9-9F40-44BA-A170-69D4857AA1CE"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F657B046-6C83-48F9-A0B1-C63CDA7FD61D"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6D87C7DE-23EA-4532-A2E4-9BF82ADE12DC"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8-rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B79A5B46-5CA3-445E-BE47-1711DCD038A1"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8-rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D600B37E-94EA-48DE-B48E-871B3A983721"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert9:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2FC3A00E-D1C6-467F-8FE7-E8437A527B3C"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79225576-AF7C-4099-9624-C53578A7417F"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29323E6E-12C9-46C7-B29C-25E0CD537A8E"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E563972-78C0-40A0-83EA-6A3BA3D71946"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64209621-D458-432A-B0E3-C8D0B6698574"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}