CVE-2019-3570
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
61.4%
Call to the scrypt_enc() function in HHVM can lead to heap corruption by using specifically crafted parameters (N, r and p). This happens if the parameters are configurable by an attacker for instance by providing the output of scrypt_enc() in a context where Hack/PHP code would attempt to verify it by re-running scrypt_enc() with the same parameters. This could result in information disclosure, memory being overwriten or crashes of the HHVM process. This issue affects versions 4.3.0, 4.4.0, 4.5.0, 4.6.0, 4.7.0, 4.8.0, versions 3.30.5 and below, and all versions in the 4.0, 4.1, and 4.2 series.
Affected configurations
CNA Affected
[
{
"product": "HHVM",
"vendor": "Facebook",
"versions": [
{
"status": "affected",
"version": "4.8.1"
},
{
"status": "affected",
"version": "4.8.0"
},
{
"status": "affected",
"version": "4.7.1"
},
{
"status": "affected",
"version": "4.7.0"
},
{
"status": "affected",
"version": "4.6.1"
},
{
"status": "affected",
"version": "4.6.0"
},
{
"status": "affected",
"version": "4.5.1"
},
{
"status": "affected",
"version": "4.5.0"
},
{
"status": "affected",
"version": "4.4.1"
},
{
"status": "affected",
"version": "4.4.0"
},
{
"status": "affected",
"version": "4.3.1"
},
{
"lessThan": "unspecified",
"status": "affected",
"version": "4.0.0",
"versionType": "custom"
},
{
"status": "affected",
"version": "3.30.6"
},
{
"lessThanOrEqual": "3.30.5",
"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
61.4%