Use After Free Affecting mxml package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-MXML-20138009
- published25 Sept 2026
- disclosed10 Dec 2018
Introduced: 10 Dec 2018
CVE-2018-20005 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest mxml.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mxml package and not the mxml package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
An issue has been found in Mini-XML (aka mxml) 2.12. It is a use-after-free in mxmlWalkNext in mxml-search.c, as demonstrated by mxmldoc.
References
- https://advisory.echohq.com/cve/CVE-2018-20005
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N53IJHDYR5HVQLKH4J6B27OEQLGKSGY5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RNWF6BAU7S42O4LE4B74KIMHFE2HDNMI/
- https://github.com/fouzhe/security/tree/master/mxml#heap-use-after-free-in-function-mxmlwalknext
- https://github.com/michaelrsweet/mxml/issues/234
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N53IJHDYR5HVQLKH4J6B27OEQLGKSGY5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNWF6BAU7S42O4LE4B74KIMHFE2HDNMI/