Bug 1665567 (CVE-2018-20573) - CVE-2018-20573 yaml-cpp: DoS in Scanner::EnsureTokensInQueue function in yaml-cpp
Summary: CVE-2018-20573 yaml-cpp: DoS in Scanner::EnsureTokensInQueue function in yaml...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-20573
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: 1665570 1665569 1676342 1676343 1676344 1678993 1678994 1694669 1694673 1694677
Blocks: 1665574
TreeView+ depends on / blocked
 
Reported: 2019-01-11 19:54 UTC by Laura Pardo
Modified: 2021-10-27 03:20 UTC (History)
9 users (show)

Fixed In Version:
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Last Closed: 2021-10-27 03:20:28 UTC
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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.
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