Описание
Netty is an open-source, asynchronous event-driven network application framework. The package io.netty:netty-codec-http prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own java.io.tmpdir when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.
CVE-2021-21290 contains an incomplete fix, and this addresses the issue found in netty. When using multipart decoders in netty, local information disclosure can occur via the local system temporary directory if temporary storing of uploads on the disk is enabled.
Отчет
This issue only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Red Hat Satellite 6 is not affected as is using netty 3.6.7 version which is not impacted by this vulnerability. Red Hat Fuse 7 is now in Maintenance Support Phase and should be fixed soon. However, Red Hat Fuse Online (Syndesis) does will not contain the fix for this flaw.
Меры по смягчению последствий
As a workaround, specify one's own java.io.tmpdir when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| A-MQ Clients 2 | netty | Not affected | ||
| Logging Subsystem for Red Hat OpenShift | openshift-logging/elasticsearch6-rhel8 | Will not fix | ||
| Red Hat A-MQ Online | netty | Not affected | ||
| Red Hat build of Quarkus | netty | Fix deferred | ||
| Red Hat Decision Manager 7 | netty | Will not fix | ||
| Red Hat JBoss A-MQ 6 | netty | Out of support scope | ||
| Red Hat JBoss Data Grid 7 | netty | Out of support scope | ||
| Red Hat JBoss Enterprise Application Platform 5 | netty | Out of support scope | ||
| Red Hat JBoss Enterprise Application Platform 6 | netty | Out of support scope | ||
| Red Hat JBoss Enterprise Application Platform Expansion Pack | netty | Will not fix |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
Netty is an open-source, asynchronous event-driven network application framework. The package `io.netty:netty-codec-http` prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own `java.io.tmpdir` when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.
Netty is an open-source, asynchronous event-driven network application framework. The package `io.netty:netty-codec-http` prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own `java.io.tmpdir` when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.
Netty is an open-source, asynchronous event-driven network application ...
Local Information Disclosure Vulnerability in io.netty:netty-codec-http
Уязвимость пакета io.netty: netty-codec-http сетевого программного средства Netty, позволяющая нарушителю раскрыть защищаемую информацию
EPSS
5.5 Medium
CVSS3