CVE-2020-1919
CVSS V2 Medium 5
CVSS V3 High 7.5
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.
Overview
- CVE ID
- CVE-2020-1919
- Assigner
- cve-assign@fb.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-10T16:15:14
- Last Modified Date
- 2021-03-15T15:51:24
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 1 | OR | 4.56.3 | |
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 1 | OR | 4.57.0 | 4.80.2 |
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 1 | OR | 4.81.0 | 4.93.2 |
| cpe:2.3:a:facebook:hhvm:4.94.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:facebook:hhvm:4.95.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:facebook:hhvm:4.96.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:facebook:hhvm:4.97.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:facebook:hhvm:4.98.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca | Patch Third Party Advisory |
| https://hhvm.com/blog/2021/02/25/security-update.html | Release Notes Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-1919 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1919 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:19:59 | Added to TrackCVE | |||
| 2022-12-05 23:25:54 | 2021-03-10T16:15Z | 2021-03-10T16:15:14 | CVE Published Date | updated |
| 2022-12-05 23:25:54 | 2021-03-15T15:51:24 | CVE Modified Date | updated | |
| 2022-12-05 23:25:54 | Analyzed | Vulnerability Status | updated |