Bug 1642328 (CVE-2018-3157)

Summary:	CVE-2018-3157 OpenJDK: Uninitialized memory use in MIDI device handling (Sound, 8200648)
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
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, dbhole, jvanek
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Last Closed:	2018-10-24 08:14:07 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:
Bug Blocks:	1633819

Description Tomas Hoger 2018-10-24 08:05:28 UTC

A flaw was found in the way the Sound component of OpenJDK handled MIDI sound devices on the Windows platform, possibly leading to the use or exposure of an uninitialized memory.  An untrusted Java application or applet could use this flaw to bypass certain Java sandbox restrictions.

Comment 1 Tomas Hoger 2018-10-24 08:06:11 UTC

Public via Oracle CPU October 2018:

https://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html#AppendixJAVA

The issue was fixed in Oracle JDK 11.0.1.

Comment 2 Tomas Hoger 2018-10-24 08:13:07 UTC

OpenJDK-11 upstream commit:
http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/d565cddc1dcc

Comment 3 Tomas Hoger 2018-10-24 08:14:07 UTC

This only affected OpenJDK builds for the Microsoft Windows platform and did not affect Linux builds.