REDHAT-BUG-1889271
First published: Mon Oct 19 2020(Updated: )
It was discovered that the implementation of the Proxy class in the Serialization component of OpenJDK could trigger an out-of-memory condition when deserializing Proxy class objects with many interfaces. A specially-crafted input could cause a Java application to use an excessive amount of memory when deserialized. The patch for this issue adds a new system property jdk.serialProxyInterfaceLimit that can be used to reduce the limit for Proxy interfaces from the default of 65535 and hence better protect against excessive memory usage.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenJDK 17 |
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Reference Links
- https://www.oracle.com/security-alerts/cpuoct2020.html#AppendixJAVA
- https://www.oracle.com/java/technologies/javase/15-0-1-relnotes.html
- https://www.oracle.com/java/technologies/javase/11-0-9-relnotes.html
- https://www.oracle.com/java/technologies/javase/8u271-relnotes.html
- https://www.oracle.com/java/technologies/javase/7-support-relnotes.html#R170_281
- https://access.redhat.com/errata/RHSA-2020:4306
- https://access.redhat.com/errata/RHSA-2020:4305
- https://access.redhat.com/security/cve/cve-2020-14779
- https://access.redhat.com/errata/RHSA-2020:4307
- https://access.redhat.com/errata/RHSA-2020:4316
- http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/2a2df11c0684
- http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/0da7153533e6
- https://access.redhat.com/errata/RHSA-2020:4349
- https://access.redhat.com/errata/RHSA-2020:4347
- https://access.redhat.com/errata/RHSA-2020:4352
- https://access.redhat.com/errata/RHSA-2020:4348
- https://access.redhat.com/errata/RHSA-2020:4350
- https://access.redhat.com/errata/RHSA-2020:5586
- https://access.redhat.com/errata/RHSA-2020:5585
- https://access.redhat.com/errata/RHSA-2021:0530
- https://bugzilla.redhat.com/show_bug.cgi?id=1889271
Frequently Asked Questions
What is the severity of REDHAT-BUG-1889271?
The severity of REDHAT-BUG-1889271 is high due to its potential to cause out-of-memory conditions in Java applications.
How do I fix REDHAT-BUG-1889271?
To fix REDHAT-BUG-1889271, you should update your OpenJDK to the latest version that addresses this vulnerability.
What platform is affected by REDHAT-BUG-1889271?
REDHAT-BUG-1889271 specifically affects Oracle OpenJDK, especially versions around 17.
What are the risks associated with REDHAT-BUG-1889271?
The risks associated with REDHAT-BUG-1889271 include potential application crashes and service interruptions due to excessive memory usage.
Can REDHAT-BUG-1889271 be exploited remotely?
Yes, a specially-crafted input can be used remotely to exploit REDHAT-BUG-1889271, leading to potential denial of service.
- agent/type
- agent/last-modified-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-14779
- agent/first-publish-date
- agent/source
- agent/severity
- agent/references
- agent/description
- agent/event
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/oracle
- canonical/openjdk 17