Bug 1665571 (CVE-2018-20574) - CVE-2018-20574 yaml-cpp: DoS in SingleDocParser::HandleFlowMap function
Summary: CVE-2018-20574 yaml-cpp: DoS in SingleDocParser::HandleFlowMap function
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-20574
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1665573 1665572 1676345 1676346 1676347 1678995 1678996 1694667 1694674 1694678
Blocks: 1665574
TreeView+ depends on / blocked
 
Reported: 2019-01-11 20:05 UTC by Laura Pardo
Modified: 2021-10-27 03:20 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-10-27 03:20:36 UTC
Embargoed:

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Description Laura Pardo 2019-01-11 20:05:21 UTC 
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.


References:
https://github.com/jbeder/yaml-cpp/issues/654
Comment 1 Laura Pardo 2019-01-11 20:05:52 UTC 
Created yaml-cpp tracking bugs for this issue:

Affects: epel-all [bug 1665573]
Affects: fedora-all [bug 1665572]
Comment 5 Stefan Cornelius 2019-04-01 11:34:53 UTC 
This is very likely a dupe of CVE-2018-20573.
Comment 11 Yadnyawalk Tale 2020-08-11 14:40:10 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.
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