CVE-2018-6337
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
folly::secureRandom will re-use a buffer between parent and child processes when fork() is called. That will result in multiple forked children producing repeat (or similar) results. This affects HHVM 3.26 prior to 3.26.3 and the folly library between v2017.12.11.00 and v2018.08.09.00.
Overview
- CVE ID
- CVE-2018-6337
- Assigner
- cve-assign@fb.com
- Vulnerability Status
- Modified
- Published Version
- 2018-12-31T22:29:00
- Last Modified Date
- 2019-10-09T23:41:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:facebook:folly:*:*:*:*:*:*:*:* | 1 | OR | 2017.12.11.00 | 2018.08.09.00 |
| cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | 1 | OR | 3.26 | 3.26.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://hhvm.com/blog/2018/05/24/hhvm-3.26.3.html | Release Notes Vendor Advisory |
| https://github.com/facebook/hhvm/commit/e2d10a1e32d01f71aaadd81169bcb9ae86c5d6b8 | Patch Third Party Advisory |
| https://github.com/facebook/folly/commit/8e927ee48b114c8a2f90d0cbd5ac753795a6761f | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-6337 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6337 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:03:52 | Added to TrackCVE | |||
| 2022-12-03 15:55:11 | 2018-12-31T22:29Z | 2018-12-31T22:29:00 | CVE Published Date | updated |
| 2022-12-03 15:55:11 | 2019-10-09T23:41:46 | CVE Modified Date | updated | |
| 2022-12-03 15:55:11 | Modified | Vulnerability Status | updated |