CVE-2021-3690: High severity redhat Fuse vulnerability
A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability.
Other sources
A vulnerability was found in Undertow where buffer leak on incoming websocket PONG message may lead to memory exhaustion.
https://issues.redhat.com/browse/UNDERTOW-1935
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.0.38-2.SP2_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-apache-commons-ioto a version that resolves this vulnerability.Fixed in 0:2.10.0-1.redhat_00001.1.el6ea - Upgrade
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redhat/eap7-hal-consoleto a version that resolves this vulnerability.Fixed in 0:3.2.16-1.Final_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-hibernateto a version that resolves this vulnerability.Fixed in 0:5.3.20-4.SP2_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-ironjacamarto a version that resolves this vulnerability.Fixed in 0:1.4.35-1.Final_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-jakarta-elto a version that resolves this vulnerability.Fixed in 0:3.0.3-2.redhat_00006.1.el6ea - Upgrade
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redhat/eap7-jberetto a version that resolves this vulnerability.Fixed in 0:1.3.9-1.Final_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-jboss-remotingto a version that resolves this vulnerability.Fixed in 0:5.0.23-2.SP1_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-jboss-server-migrationto a version that resolves this vulnerability.Fixed in 0:1.7.2-9.Final_redhat_00010.1.el6ea - Upgrade
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redhat/eap7-narayanato a version that resolves this vulnerability.Fixed in 0:5.9.12-1.Final_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-picketboxto a version that resolves this vulnerability.Fixed in 0:5.0.3-9.Final_redhat_00008.1.el6ea - Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.0.39-1.SP2_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-wildflyto a version that resolves this vulnerability.Fixed in 0:7.3.9-2.GA_redhat_00002.1.el6ea - Upgrade
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redhat/eap7-wildfly-http-clientto a version that resolves this vulnerability.Fixed in 0:1.0.29-1.Final_redhat_00002.1.el6ea - Upgrade
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redhat/eap7-wildfly-transaction-clientto a version that resolves this vulnerability.Fixed in 0:1.1.14-2.Final_redhat_00001.1.el6ea - Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.0.38-2.SP2_redhat_00001.1.el7ea - Upgrade
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redhat/eap7-apache-commons-ioto a version that resolves this vulnerability.Fixed in 0:2.10.0-1.redhat_00001.1.el7ea - Upgrade
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redhat/eap7-hal-consoleto a version that resolves this vulnerability.Fixed in 0:3.2.16-1.Final_redhat_00001.1.el7ea - Upgrade
Upgrade
redhat/eap7-hibernateto a version that resolves this vulnerability.Fixed in 0:5.3.20-4.SP2_redhat_00001.1.el7ea - Upgrade
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redhat/eap7-ironjacamarto a version that resolves this vulnerability.Fixed in 0:1.4.35-1.Final_redhat_00001.1.el7ea - Upgrade
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redhat/eap7-jakarta-elto a version that resolves this vulnerability.Fixed in 0:3.0.3-2.redhat_00006.1.el7ea - Upgrade
Upgrade
redhat/eap7-jberetto a version that resolves this vulnerability.Fixed in 0:1.3.9-1.Final_redhat_00001.1.el7ea - Upgrade
Upgrade
redhat/eap7-jboss-remotingto a version that resolves this vulnerability.Fixed in 0:5.0.23-2.SP1_redhat_00001.1.el7ea - Upgrade
Upgrade
redhat/eap7-jboss-server-migrationto a version that resolves this vulnerability.Fixed in 0:1.7.2-9.Final_redhat_00010.1.el7ea - Upgrade
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redhat/eap7-narayanato a version that resolves this vulnerability.Fixed in 0:5.9.12-1.Final_redhat_00001.1.el7ea - Upgrade
Upgrade
redhat/eap7-picketboxto a version that resolves this vulnerability.Fixed in 0:5.0.3-9.Final_redhat_00008.1.el7ea - Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.0.39-1.SP2_redhat_00001.1.el7ea - Upgrade
Upgrade
redhat/eap7-wildflyto a version that resolves this vulnerability.Fixed in 0:7.3.9-2.GA_redhat_00002.1.el7ea - Upgrade
Upgrade
redhat/eap7-wildfly-http-clientto a version that resolves this vulnerability.Fixed in 0:1.0.29-1.Final_redhat_00002.1.el7ea - Upgrade
Upgrade
redhat/eap7-wildfly-transaction-clientto a version that resolves this vulnerability.Fixed in 0:1.1.14-2.Final_redhat_00001.1.el7ea - Upgrade
Upgrade
redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.0.38-2.SP2_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-apache-commons-ioto a version that resolves this vulnerability.Fixed in 0:2.10.0-1.redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-hal-consoleto a version that resolves this vulnerability.Fixed in 0:3.2.16-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-hibernateto a version that resolves this vulnerability.Fixed in 0:5.3.20-4.SP2_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-ironjacamarto a version that resolves this vulnerability.Fixed in 0:1.4.35-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-jakarta-elto a version that resolves this vulnerability.Fixed in 0:3.0.3-2.redhat_00006.1.el8ea - Upgrade
Upgrade
redhat/eap7-jberetto a version that resolves this vulnerability.Fixed in 0:1.3.9-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-jboss-remotingto a version that resolves this vulnerability.Fixed in 0:5.0.23-2.SP1_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-jboss-server-migrationto a version that resolves this vulnerability.Fixed in 0:1.7.2-9.Final_redhat_00010.1.el8ea - Upgrade
Upgrade
redhat/eap7-narayanato a version that resolves this vulnerability.Fixed in 0:5.9.12-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-picketboxto a version that resolves this vulnerability.Fixed in 0:5.0.3-9.Final_redhat_00008.1.el8ea - Upgrade
Upgrade
redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.0.39-1.SP2_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-wildflyto a version that resolves this vulnerability.Fixed in 0:7.3.9-2.GA_redhat_00002.1.el8ea - Upgrade
Upgrade
redhat/eap7-wildfly-http-clientto a version that resolves this vulnerability.Fixed in 0:1.0.29-1.Final_redhat_00002.1.el8ea - Upgrade
Upgrade
redhat/eap7-wildfly-transaction-clientto a version that resolves this vulnerability.Fixed in 0:1.1.14-2.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.2.5-2.SP1_redhat_00001.1.el8ea - Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.2.9-2.SP1_redhat_00001.1.el8ea - Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.2.5-2.SP1_redhat_00001.1.el7ea - Upgrade
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redhat/eap7-undertowto a version that resolves this vulnerability.Fixed in 0:2.2.9-2.SP1_redhat_00001.1.el7ea
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is the severity of CVE-2021-3690?
The severity of CVE-2021-3690 is classified as high due to its potential to cause a denial of service.
How do I fix CVE-2021-3690?
To fix CVE-2021-3690, update to the recommended patched version of the affected Undertow package.
Which versions of Undertow are affected by CVE-2021-3690?
CVE-2021-3690 affects specific versions of Undertow up to 2.0.40.
Is there a risk of memory exhaustion from CVE-2021-3690?
Yes, CVE-2021-3690 can lead to memory exhaustion due to a buffer leak on incoming WebSocket PONG messages.
What impact does CVE-2021-3690 have on my application?
CVE-2021-3690 impacts application availability, making it vulnerable to denial of service attacks.