Bug 1665567 (CVE-2018-20573)

Summary: CVE-2018-20573 yaml-cpp: DoS in Scanner::EnsureTokensInQueue function in yaml-cpp
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: apevec, jjoyce, jschluet, lhh, lpeer, mburns, sclewis, scorneli, slinaber
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Clone Of: Environment:
Last Closed: 2021-10-27 03:20:28 UTC Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1665569, 1665570, 1676342, 1676343, 1676344, 1678993, 1678994, 1694669, 1694673, 1694677    
Bug Blocks: 1665574    

Description Laura Pardo 2019-01-11 19:54:05 UTC 
The Scanner::EnsureTokensInQueue 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.


References:
https://github.com/jbeder/yaml-cpp/issues/655
Comment 1 Laura Pardo 2019-01-11 20:01:11 UTC 
Created yaml-cpp tracking bugs for this issue:

Affects: epel-all [bug 1665570]
Affects: fedora-all [bug 1665569]
Comment 12 Yadnyawalk Tale 2020-08-11 14:38:48 UTC 
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.