Bug 1866027 (CVE-2020-14664) - CVE-2020-14664 JavaFX: Out-of-bounds write in HTML Rendering
Summary: CVE-2020-14664 JavaFX: Out-of-bounds write in HTML Rendering
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-14664
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1838813
TreeView+ depends on / blocked
 
Reported: 2020-08-04 17:03 UTC by Pedro Sampaio
Modified: 2020-08-04 21:23 UTC (History)
3 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2020-08-04 20:24:15 UTC


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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/


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