CVE-2022-25857
Description
A flaw was found in the org.yaml.snakeyaml package. This flaw allows an attacker to cause a denial of service (DoS) due to missing nested depth limitation for collections.
Statement
For RHEL-8 it's downgraded to moderate because "snakeyaml" itself in RHEL 8 or RHEL-9 isn't shipped and "prometheus-jmx-exporter" is needed as build dependency. And it's not directly exploitable, hence severity marked as moderate. Red Hat Integration and AMQ products are not vulnerable to this flaw, so their severity has been lowered to moderate. Red Hat Single Sign-On uses snakeyaml from liquibase-core and is only used when performing migrations and would require administrator privileges to execute, hence severity marked as Low. Red Hat Fuse 7 is now in Maintenance Support Phase and details about its fix should be present soon. However, Red Hat Fuse Online (Syndesis) does will not contain the fix for this flaw.
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).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | 7.5 | 7.5 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | None |
| Integrity Impact | None | None | None |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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