Overview
- Description
- A potential denial-of-service issue in the Proxygen handling of invalid HTTP2 settings which can cause the server to spend disproportionate resources. This affects all supported versions of HHVM (3.24.3 and 3.21.7 and below) when using the proxygen server to handle HTTP2 requests.
- Source
- cve-assign@fb.com
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 5.9
- Impact score
- 3.6
- Exploitability score
- 2.2
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4.3
- Impact score
- 2.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:N/I:N/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D1EF1502-F93C-4399-8FB9-2C1DE48095D8",
"versionEndIncluding": "3.21.7"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:3.24.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0CAF9519-6DC4-4028-BF5B-BF06D3467150"
}
],
"operator": "OR"
}
]
}
]