CVE-2018-20574
Description
From CVE.org
The SingleDocParser::HandleFlowMap function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.
Statement
This issue affects the versions of rh-mongodb32-yaml-cpp, rh-mongodb34-yaml-cpp, and rh-mongodb36-yaml-cpp as shipped with Red Hat Software Collections. However, this is only used to parse configuration files.
Red Hat Satellite 6.5 ship yaml-cpp however has been rated as a security impact of Low, product version Satellite 6.6 onward is not affected. Satellite 6.5 is in Maintenance Support phase of the product life cycle and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Satellite 6 Life Cycle: https://access.redhat.com/support/policy/updates/satellite.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 3.7 | 6.5 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | High | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | Low | High | N/A |
Vector
Red Hat: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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