Upstream information

CVE-2019-20478 at MITRE

Description

In ruamel.yaml through 0.16.7, the load method allows remote code execution if the application calls this method with an untrusted argument. In other words, this issue affects developers who are unaware of the need to use methods such as safe_load in these use cases.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 10
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 7.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High Low
Integrity Impact High Low
Availability Impact High Low
CVSSv3 Version 3.1 3.1

Note from the SUSE Security Team

As mitigation please switch from the load to the safe_load method in your tooling.

SUSE Bugzilla entry: 1164458 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • python36-ruamel.yaml >= 0.17.10-1.2
  • python38-ruamel.yaml >= 0.17.10-1.2
  • python39-ruamel.yaml >= 0.17.10-1.2
 Patchnames:
openSUSE Tumbleweed GA python36-ruamel.yaml-0.17.10-1.2

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP4 python-ruamel.yaml Already fixed
SUSE Linux Enterprise High Performance Computing 12 python-ruamel.yaml Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP4 python-ruamel.yaml Already fixed
SUSE Linux Enterprise Module for Package Hub 15 SP4 python-ruamel.yaml Already fixed
SUSE Linux Enterprise Module for Public Cloud 12 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server 12 SP5 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server 15 SP4 python-ruamel.yaml Already fixed
SUSE Linux Enterprise Server for SAP Applications 12 SP5 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP4 python-ruamel.yaml Already fixed
SUSE Manager Proxy 4.3 python-ruamel.yaml Already fixed
SUSE Manager Retail Branch Server 4.3 python-ruamel.yaml Already fixed
SUSE Manager Server 4.3 python-ruamel.yaml Already fixed
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Server 12 SP4 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP4 python-ruamel.yaml Won't fix
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Server 12 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server 12 SP3 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 python-ruamel.yaml Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 SP3 python-ruamel.yaml Won't fix

SUSE Timeline for this CVE

CVE page created: Wed Feb 19 15:45:42 2020
CVE page last modified: Thu Feb 9 14:13:23 2023