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
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
AI Score
Confidence
High
EPSS
Percentile
64.7%
When unserializing an object with dynamic properties HHVM needs to pre-reserve the full size of the dynamic property array before inserting anything into it. Otherwise the array might resize, invalidating previously stored references. This pre-reservation was not occurring in HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.
Vendor | Product | Version | CPE |
---|---|---|---|
hhvm | * | cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | |
hhvm | 4.57.0 | cpe:2.3:a:facebook:hhvm:4.57.0:*:*:*:*:*:*:* | |
hhvm | 4.58.0 | cpe:2.3:a:facebook:hhvm:4.58.0:*:*:*:*:*:*:* | |
hhvm | 4.58.1 | cpe:2.3:a:facebook:hhvm:4.58.1:*:*:*:*:*:*:* | |
hhvm | 4.59.0 | cpe:2.3:a:facebook:hhvm:4.59.0:*:*:*:*:*:*:* | |
hhvm | 4.60.0 | cpe:2.3:a:facebook:hhvm:4.60.0:*:*:*:*:*:*:* | |
hhvm | 4.61.0 | cpe:2.3:a:facebook:hhvm:4.61.0:*:*:*:*:*:*:* | |
hhvm | 4.62.0 | cpe:2.3:a:facebook:hhvm:4.62.0:*:*:*:*:*:*:* |
[
{
"product": "HHVM",
"vendor": "Facebook",
"versions": [
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.62.1",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.62.0"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.61.1",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.61.0"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.60.1",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.60.0"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.59.1",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.59.0"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.58.2",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "affected",
"version": "4.58.0",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.57.1",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.57.0"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.56.1",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "affected",
"version": "4.33.0",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "4.32.3",
"versionType": "custom"
},
{
"lessThan": "4.32.3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]
More
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
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
AI Score
Confidence
High
EPSS
Percentile
64.7%