CVE-2020-1919
Scores
EPSS
Percentile: 0.0%
CVSS
CVSS Score: 7.5/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
None (N)
Measures the impact to the availability of the impacted component
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
Partial
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
None (N)
Measures the impact to the availability of the impacted component
Description
Incorrect bounds calculations in substr_compare could lead to an out-of-bounds read when the second string argument passed in is longer than the first. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
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Sources
CWEs
Vulnerable Software (5)
Type: Configuration
Product: hhvm
Operating System: debian
{ "unfixed": true}
Source: debian
Type: Configuration
Product: hhvm
Operating System: ubuntu bionic 18.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: hhvm
Operating System: ubuntu trusty 14.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: hhvm
Operating System: ubuntu xenial 16.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Vendor: facebook
Product: hhvm
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.56.3", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.56.3", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.80.2", "versionStartIncluding": "4.57.0", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.93.2", "versionStartIncluding": "4.81.0", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:4.94.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:4.95.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:4.96.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:4.97.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:facebook:hhvm:4.98.0:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd