CVE-2021-46837

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-46837", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-04T05:17:42.455Z", "dateReserved": "2022-08-30T00:00:00.000Z", "datePublished": "2022-08-30T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2022-11-18T00:00:00.000Z"}, "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."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html"}, {"name": "[debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html"}, {"name": "DSA-5285", "tags": ["vendor-advisory"], "url": "https://www.debian.org/security/2022/dsa-5285"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.455Z"}, "title": "CVE Program Container", "references": [{"url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html", "tags": ["x_transferred"]}, {"name": "[debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html"}, {"name": "DSA-5285", "tags": ["vendor-advisory", "x_transferred"], "url": "https://www.debian.org/security/2022/dsa-5285"}]}]}}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:-:*:*:*:*:*:*", "matchCriteriaId": "335EF1B5-AD89-48E2-AB2C-BF376BC36F77", "vulnerable": true}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert1:*:*:*:*:*:*", "matchCriteriaId": "E64BCD44-2298-4710-9CC3-DF82E6A8DF94", "vulnerable": true}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert2:*:*:*:*:*:*", "matchCriteriaId": "A35C117A-6EFB-42EB-AD2A-EA7866606927", "vulnerable": true}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert3:*:*:*:*:*:*", "matchCriteriaId": "40003CBE-792F-4875-9E60-6F1CE0BBAA8E", "vulnerable": true}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert4:*:*:*:*:*:*", "matchCriteriaId": "46A7AA7B-13F2-496A-99ED-1CC13234E8CB", "vulnerable": true}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert5:*:*:*:*:*:*", "matchCriteriaId": "147663CB-B48D-4D89-96BF-F92FF96F347F", "vulnerable": true}, {"criteria": "cpe:2.3:a:asterisk:certified_asterisk:16.8.0:cert6:*:*:*:*:*:*", "matchCriteriaId": "27DBBC83-930A-4ECE-8C1E-47481D881B0D", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "matchCriteriaId": "E6D5A9E8-239F-492C-95AD-7CF2AB964D87", "versionEndExcluding": "16.16.2", "versionStartIncluding": "16.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "matchCriteriaId": "9CA36883-D695-47A1-8CA7-2F128BFA194D", "versionEndExcluding": "17.9.3", "versionStartIncluding": "17.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "matchCriteriaId": "8DEE180D-A041-42AB-AE5E-DDBD9CF0AACF", "versionEndExcluding": "18.2.2", "versionStartIncluding": "18.0.0", "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}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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"}], "id": "CVE-2021-46837", "lastModified": "2026-06-17T04:15:38.630", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-08-30T07:15:07.417", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5285"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5285"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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