cve-2021-46837
Vulnerability from cvelistv5
Published
2022-08-30 00:00
Modified
2024-08-04 05:17
Severity ?
Summary
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.
References
cve@mitre.orghttps://downloads.asterisk.org/pub/security/AST-2021-006.htmlVendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2022/dsa-5285Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://downloads.asterisk.org/pub/security/AST-2021-006.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5285Third Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:17:42.455Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "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",
              "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"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-18T00:00:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "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"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-46837",
    "datePublished": "2022-08-30T00:00:00",
    "dateReserved": "2022-08-30T00:00:00",
    "dateUpdated": "2024-08-04T05:17:42.455Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-46837\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2022-08-30T07:15:07.417\",\"lastModified\":\"2024-11-21T06:34:47.440\",\"vulnStatus\":\"Modified\",\"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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"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:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"16.0.0\",\"versionEndExcluding\":\"16.16.2\",\"matchCriteriaId\":\"E6D5A9E8-239F-492C-95AD-7CF2AB964D87\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"17.0.0\",\"versionEndExcluding\":\"17.9.3\",\"matchCriteriaId\":\"9CA36883-D695-47A1-8CA7-2F128BFA194D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"18.0.0\",\"versionEndExcluding\":\"18.2.2\",\"matchCriteriaId\":\"8DEE180D-A041-42AB-AE5E-DDBD9CF0AACF\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"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\"}]}]}],\"references\":[{\"url\":\"https://downloads.asterisk.org/pub/security/AST-2021-006.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2022/dsa-5285\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://downloads.asterisk.org/pub/security/AST-2021-006.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2022/dsa-5285\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.