CVE-2018-6345
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.5 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
64.7%
The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large. The internal implementation of the function will cause a string to be created with an invalid length, which can then interact poorly with other functions. This affects all supported versions of HHVM (3.30.1 and 3.27.5 and below).
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| facebook:hhvm | facebook hhvm | le | 3.27.5 |
| facebook:hhvm | facebook hhvm | le | 3.30.1 |
CNA Affected
[
{
"product": "HHVM",
"vendor": "Facebook",
"versions": [
{
"status": "affected",
"version": "3.30.2"
},
{
"lessThan": "unspecified",
"status": "affected",
"version": "3.30.0",
"versionType": "custom"
},
{
"status": "affected",
"version": "3.27.6"
},
{
"lessThan": "3.27.6",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.5 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
64.7%