CVE-2021-26713 (GCVE-0-2021-26713)
Vulnerability from cvelistv5
Published
2021-02-19 19:30
Modified
2024-08-03 20:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T20:33:40.660Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://downloads.asterisk.org/pub/security/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://downloads.asterisk.org/pub/security/AST-2021-004.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29205"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-02-19T19:30:30",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://downloads.asterisk.org/pub/security/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://downloads.asterisk.org/pub/security/AST-2021-004.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29205"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-26713",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://downloads.asterisk.org/pub/security/",
"refsource": "MISC",
"url": "https://downloads.asterisk.org/pub/security/"
},
{
"name": "https://downloads.asterisk.org/pub/security/AST-2021-004.html",
"refsource": "MISC",
"url": "https://downloads.asterisk.org/pub/security/AST-2021-004.html"
},
{
"name": "https://issues.asterisk.org/jira/browse/ASTERISK-29205",
"refsource": "MISC",
"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29205"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-26713",
"datePublished": "2021-02-19T19:30:30",
"dateReserved": "2021-02-05T00:00:00",
"dateUpdated": "2024-08-03T20:33:40.660Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-26713\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-02-19T20:15:13.193\",\"lastModified\":\"2024-11-21T05:56:43.707\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.\"},{\"lang\":\"es\",\"value\":\"Un desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria en el archivo res_rtp_asterisk.c en Sangoma Asterisk versiones anteriores a 16.16.1, versiones 17.x anteriores a 17.9.2 y versiones 18.x anteriores a 18.2.1 y Certified Asterisk versiones anteriores a 16.8-cert6, permite a un cliente WebRTC autenticado causar un bloqueo de Asterisk mediante el env\u00edo de m\u00faltiples peticiones de hold/unhold en una sucesi\u00f3n r\u00e1pida.\u0026#xa0;Esto es causado por una discrepancia en la comparaci\u00f3n de firmas\"}],\"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}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:N/I:N/A:P\",\"baseScore\":4.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"16.0.0\",\"versionEndExcluding\":\"16.16.1\",\"matchCriteriaId\":\"7382B641-0396-456F-BF33-3F6412E35F2D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"17.0.0\",\"versionEndExcluding\":\"17.9.2\",\"matchCriteriaId\":\"C5BA8606-ADA9-4841-A7E2-A9165138849A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"18.0.0\",\"versionEndExcluding\":\"18.2.1\",\"matchCriteriaId\":\"CE8661F7-03A5-4850-BEF7-E306AECE3037\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"81C3E390-8B99-4EB8-82DD-02893611209A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"17DB2297-1908-4F87-8046-2BAA74569D71\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"CEA2CC40-C2F6-4828-82F0-1B50D3E61F77\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"32F19F43-C1E8-4B6C-9356-AF355B7320BD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert1-rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"21D1FA32-B441-485F-8AE9-F3A394626909\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert2:*:*:*:*:*:*\",\"matchCriteriaId\":\"F7795CCF-B160-4B4F-9529-1192C11D7FDB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert3:*:*:*:*:*:*\",\"matchCriteriaId\":\"0C5E5D0D-9EB3-40FD-8B7E-E93A95D07AB1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert4:*:*:*:*:*:*\",\"matchCriteriaId\":\"C7DFDA30-DD61-4BBC-AFE4-448BF2A4F303\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"142F1F89-49AC-4A0B-A273-61F697063A5A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"53041795-788C-4914-A2F6-41539ABE0244\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"FBB98E65-B2D0-49A4-8BF3-12155E3E13C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert4-rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"769C854C-03CD-40A9-B39B-C0CDCA8252EA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:digium:certified_asterisk:16.8:cert5:*:*:*:*:*:*\",\"matchCriteriaId\":\"6D86AD6E-4E07-48B0-88D8-E18F277FFE6A\"}]}]}],\"references\":[{\"url\":\"https://downloads.asterisk.org/pub/security/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://downloads.asterisk.org/pub/security/AST-2021-004.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://issues.asterisk.org/jira/browse/ASTERISK-29205\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://downloads.asterisk.org/pub/security/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://downloads.asterisk.org/pub/security/AST-2021-004.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://issues.asterisk.org/jira/browse/ASTERISK-29205\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
Loading…
Loading…
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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
Loading…
Loading…