CVE-2018-6345
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
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).
Overview
- CVE ID
- CVE-2018-6345
- Assigner
- cve-assign@fb.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-01-15T22:29:00
- Last Modified Date
- 2020-09-21T12:29:26
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 1 | OR | 3.27.5 | |
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 1 | OR | 3.28.0 | 3.30.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html | Release Notes Vendor Advisory |
| https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-6345 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6345 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:13:57 | Added to TrackCVE | |||
| 2022-12-03 16:26:15 | 2019-01-15T22:29Z | 2019-01-15T22:29:00 | CVE Published Date | updated |
| 2022-12-03 16:26:15 | 2020-09-21T12:29:26 | CVE Modified Date | updated | |
| 2022-12-03 16:26:15 | Analyzed | Vulnerability Status | updated |