Overview
- Description
- An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.
- 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
CVSS 2.0
- Type
- Primary
- Base score
- 4
- Impact score
- 2.9
- Exploitability score
- 8
- Vector string
- AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-674
Social media
- Hype score
- Not currently trending
Configurations
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{
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{
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"cpeMatch": [
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"matchCriteriaId": "1FD83903-7BCB-4980-AB42-957867077070",
"versionEndIncluding": "16.8.0"
},
{
"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "55E64E8D-DE76-4047-813E-0325E49D7BFB",
"versionEndExcluding": "13.37.1",
"versionStartIncluding": "13.0"
},
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"matchCriteriaId": "5F2DA86C-6FB5-4ACC-83BF-812BECD26441",
"versionEndExcluding": "16.14.1",
"versionStartIncluding": "16.0"
},
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"versionEndExcluding": "17.8.1",
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},
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"matchCriteriaId": "716CD81A-8970-42B6-92CB-42D9C9C36B5C",
"versionEndExcluding": "18.0.1",
"versionStartIncluding": "18.0"
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"operator": "OR"
}
]
},
{
"nodes": [
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"operator": "OR"
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{
"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
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