Bug 1866027 (CVE-2020-14664)

Summary:	CVE-2020-14664 JavaFX: Out-of-bounds write in HTML Rendering
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ahughes, jvanek, yozone
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Last Closed:	2020-08-04 20:24:15 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1838813

Description Pedro Sampaio 2020-08-04 17:03:45 UTC

It was discovered that the lack of proper validation of user-supplied data in HTML rendering in JavaFX can result in a write past the end of an allocated data structure. This issue can potentially lead to code execution in the current process context.

References:

https://www.oracle.com/security-alerts/cpujul2020.html#AppendixJAVA

Comment 1 Tomas Hoger 2020-08-04 20:24:15 UTC

This is not an OpenJDK issue, but rather JavaFX / OpenJFX, which is not currently shipped as part of any Red Hat product.

Comment 2 Tomas Hoger 2020-08-04 20:25:09 UTC

The details of the flaw as noted in comment 0 are not available in the Oracle CPU, but rather seem to come from this ZDI advisory:

https://www.zerodayinitiative.com/advisories/ZDI-20-897/