Overview
- Description
- folly::secureRandom will re-use a buffer between parent and child processes when fork() is called. That will result in multiple forked children producing repeat (or similar) results. This affects HHVM 3.26 prior to 3.26.3 and the folly library between v2017.12.11.00 and v2018.08.09.00.
- Source
- cve-assign@fb.com
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:P/A:N
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:facebook:folly:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C5CE5C5F-6B35-4243-BE99-CFB558D74996",
"versionEndIncluding": "2018.08.09.00",
"versionStartIncluding": "2017.12.11.00"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1797EA50-9525-49CC-86B0-70DD9C573732",
"versionEndExcluding": "3.26.3",
"versionStartIncluding": "3.26"
}
],
"operator": "OR"
}
]
}
]