CVE-2021-46837

{"id": "CVE-2021-46837", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2022-08-30T07:15:07.417", "references": [{"url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2022/dsa-5285", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "res_pjsip_t38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation."}, {"lang": "es", "value": "La funci\u00f3n res_pjsip_t38 en Sangoma Asterisk versiones 16.x anteriores a 16.16.2, 17.x anteriores a 17.9.3, y 18.x anteriores a 18.2.2, y Certified Asterisk anteriores a 16.8-cert7, permite a un atacante desencadenar un fallo mediante el env\u00edo de una l\u00ednea m=image y un puerto cero en una respuesta a una Re invitaci\u00f3n T.38 iniciada por Asterisk. Se trata de una reaparici\u00f3n de los s\u00edntomas de la CVE-2019-15297 pero no exactamente por el mismo motivo. El fallo es producido porque se presenta una operaci\u00f3n de append relativa a la topolog\u00eda activa, pero deber\u00eda ser en cambio una operaci\u00f3n de replace"}], "lastModified": "2023-01-28T01:20:40.947", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "335EF1B5-AD89-48E2-AB2C-BF376BC36F77"}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E64BCD44-2298-4710-9CC3-DF82E6A8DF94"}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A35C117A-6EFB-42EB-AD2A-EA7866606927"}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "40003CBE-792F-4875-9E60-6F1CE0BBAA8E"}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46A7AA7B-13F2-496A-99ED-1CC13234E8CB"}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "147663CB-B48D-4D89-96BF-F92FF96F347F"}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "27DBBC83-930A-4ECE-8C1E-47481D881B0D"}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E6D5A9E8-239F-492C-95AD-7CF2AB964D87", "versionEndExcluding": "16.16.2", "versionStartIncluding": "16.0.0"}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9CA36883-D695-47A1-8CA7-2F128BFA194D", "versionEndExcluding": "17.9.3", "versionStartIncluding": "17.0.0"}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8DEE180D-A041-42AB-AE5E-DDBD9CF0AACF", "versionEndExcluding": "18.2.2", "versionStartIncluding": "18.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}