Overview
- Description
- An incorrect size calculation in ldap_escape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.
- Source
- cve-assign@fb.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6711FFC9-F4D3-438B-B596-30FCB4EAF015",
"versionEndExcluding": "4.56.2"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "14D6DF29-4414-4A07-99E9-1BD568EC77A7",
"versionEndExcluding": "4.78.1",
"versionStartIncluding": "4.57.0"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:4.79.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0C83AAFF-2886-424B-A9BD-251B3AAC790B"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:4.80.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "73B27B4A-CD40-4493-BDCD-27F6ADD6C65A"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:4.81.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5BD9447B-B287-484B-A14C-787F8481EBB8"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:4.82.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "15825F25-22B8-4863-A4E0-AD2EE66FA12C"
},
{
"criteria": "cpe:2.3:a:facebook:hhvm:4.83.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A04923E1-4DCE-4E34-8238-99BCCEEF4791"
}
],
"operator": "OR"
}
]
}
]