Overview
- Description
- A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.
- Source
- cve@mitre.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
Weaknesses
- nvd@nist.gov
- CWE-416
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3632620E-8A6D-4D65-BED9-80C0E7CEA8DD",
"versionEndExcluding": "16.29.1",
"versionStartIncluding": "16.0.0"
},
{
"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "667B21FC-79F4-47C6-A116-84D6A6CB34FA",
"versionEndExcluding": "18.15.1",
"versionStartIncluding": "18.14.0"
},
{
"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A26F9A47-00F4-4A96-B679-E8D68E842E32",
"versionEndExcluding": "19.7.1",
"versionStartIncluding": "19.6.0"
},
{
"criteria": "cpe:2.3:a:sangoma:asterisk:20.0.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ADB799D3-B6BE-468C-8D3E-B087ED287B24"
},
{
"criteria": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "892BAE5D-A64E-4FE0-9A99-8C07F342A042"
}
],
"operator": "OR"
}
]
}
]