CVE-2021-3690
First published: Fri Jul 30 2021(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/eap7-undertow | <0:2.0.38-2.SP2_redhat_00001.1.el6ea | 0:2.0.38-2.SP2_redhat_00001.1.el6ea |
| redhat/eap7-apache-commons-io | <0:2.10.0-1.redhat_00001.1.el6ea | 0:2.10.0-1.redhat_00001.1.el6ea |
| redhat/eap7-hal-console | <0:3.2.16-1.Final_redhat_00001.1.el6ea | 0:3.2.16-1.Final_redhat_00001.1.el6ea |
| redhat/eap7-hibernate | <0:5.3.20-4.SP2_redhat_00001.1.el6ea | 0:5.3.20-4.SP2_redhat_00001.1.el6ea |
| redhat/eap7-ironjacamar | <0:1.4.35-1.Final_redhat_00001.1.el6ea | 0:1.4.35-1.Final_redhat_00001.1.el6ea |
| redhat/eap7-jakarta-el | <0:3.0.3-2.redhat_00006.1.el6ea | 0:3.0.3-2.redhat_00006.1.el6ea |
| redhat/eap7-jberet | <0:1.3.9-1.Final_redhat_00001.1.el6ea | 0:1.3.9-1.Final_redhat_00001.1.el6ea |
| redhat/eap7-jboss-remoting | <0:5.0.23-2.SP1_redhat_00001.1.el6ea | 0:5.0.23-2.SP1_redhat_00001.1.el6ea |
| redhat/eap7-jboss-server-migration | <0:1.7.2-9.Final_redhat_00010.1.el6ea | 0:1.7.2-9.Final_redhat_00010.1.el6ea |
| redhat/eap7-narayana | <0:5.9.12-1.Final_redhat_00001.1.el6ea | 0:5.9.12-1.Final_redhat_00001.1.el6ea |
| redhat/eap7-picketbox | <0:5.0.3-9.Final_redhat_00008.1.el6ea | 0:5.0.3-9.Final_redhat_00008.1.el6ea |
| redhat/eap7-undertow | <0:2.0.39-1.SP2_redhat_00001.1.el6ea | 0:2.0.39-1.SP2_redhat_00001.1.el6ea |
| redhat/eap7-wildfly | <0:7.3.9-2.GA_redhat_00002.1.el6ea | 0:7.3.9-2.GA_redhat_00002.1.el6ea |
| redhat/eap7-wildfly-http-client | <0:1.0.29-1.Final_redhat_00002.1.el6ea | 0:1.0.29-1.Final_redhat_00002.1.el6ea |
| redhat/eap7-wildfly-transaction-client | <0:1.1.14-2.Final_redhat_00001.1.el6ea | 0:1.1.14-2.Final_redhat_00001.1.el6ea |
| redhat/eap7-undertow | <0:2.0.38-2.SP2_redhat_00001.1.el7ea | 0:2.0.38-2.SP2_redhat_00001.1.el7ea |
| redhat/eap7-apache-commons-io | <0:2.10.0-1.redhat_00001.1.el7ea | 0:2.10.0-1.redhat_00001.1.el7ea |
| redhat/eap7-hal-console | <0:3.2.16-1.Final_redhat_00001.1.el7ea | 0:3.2.16-1.Final_redhat_00001.1.el7ea |
| redhat/eap7-hibernate | <0:5.3.20-4.SP2_redhat_00001.1.el7ea | 0:5.3.20-4.SP2_redhat_00001.1.el7ea |
| redhat/eap7-ironjacamar | <0:1.4.35-1.Final_redhat_00001.1.el7ea | 0:1.4.35-1.Final_redhat_00001.1.el7ea |
| redhat/eap7-jakarta-el | <0:3.0.3-2.redhat_00006.1.el7ea | 0:3.0.3-2.redhat_00006.1.el7ea |
| redhat/eap7-jberet | <0:1.3.9-1.Final_redhat_00001.1.el7ea | 0:1.3.9-1.Final_redhat_00001.1.el7ea |
| redhat/eap7-jboss-remoting | <0:5.0.23-2.SP1_redhat_00001.1.el7ea | 0:5.0.23-2.SP1_redhat_00001.1.el7ea |
| redhat/eap7-jboss-server-migration | <0:1.7.2-9.Final_redhat_00010.1.el7ea | 0:1.7.2-9.Final_redhat_00010.1.el7ea |
| redhat/eap7-narayana | <0:5.9.12-1.Final_redhat_00001.1.el7ea | 0:5.9.12-1.Final_redhat_00001.1.el7ea |
| redhat/eap7-picketbox | <0:5.0.3-9.Final_redhat_00008.1.el7ea | 0:5.0.3-9.Final_redhat_00008.1.el7ea |
| redhat/eap7-undertow | <0:2.0.39-1.SP2_redhat_00001.1.el7ea | 0:2.0.39-1.SP2_redhat_00001.1.el7ea |
| redhat/eap7-wildfly | <0:7.3.9-2.GA_redhat_00002.1.el7ea | 0:7.3.9-2.GA_redhat_00002.1.el7ea |
| redhat/eap7-wildfly-http-client | <0:1.0.29-1.Final_redhat_00002.1.el7ea | 0:1.0.29-1.Final_redhat_00002.1.el7ea |
| redhat/eap7-wildfly-transaction-client | <0:1.1.14-2.Final_redhat_00001.1.el7ea | 0:1.1.14-2.Final_redhat_00001.1.el7ea |
| redhat/eap7-undertow | <0:2.0.38-2.SP2_redhat_00001.1.el8ea | 0:2.0.38-2.SP2_redhat_00001.1.el8ea |
| redhat/eap7-apache-commons-io | <0:2.10.0-1.redhat_00001.1.el8ea | 0:2.10.0-1.redhat_00001.1.el8ea |
| redhat/eap7-hal-console | <0:3.2.16-1.Final_redhat_00001.1.el8ea | 0:3.2.16-1.Final_redhat_00001.1.el8ea |
| redhat/eap7-hibernate | <0:5.3.20-4.SP2_redhat_00001.1.el8ea | 0:5.3.20-4.SP2_redhat_00001.1.el8ea |
| redhat/eap7-ironjacamar | <0:1.4.35-1.Final_redhat_00001.1.el8ea | 0:1.4.35-1.Final_redhat_00001.1.el8ea |
| redhat/eap7-jakarta-el | <0:3.0.3-2.redhat_00006.1.el8ea | 0:3.0.3-2.redhat_00006.1.el8ea |
| redhat/eap7-jberet | <0:1.3.9-1.Final_redhat_00001.1.el8ea | 0:1.3.9-1.Final_redhat_00001.1.el8ea |
| redhat/eap7-jboss-remoting | <0:5.0.23-2.SP1_redhat_00001.1.el8ea | 0:5.0.23-2.SP1_redhat_00001.1.el8ea |
| redhat/eap7-jboss-server-migration | <0:1.7.2-9.Final_redhat_00010.1.el8ea | 0:1.7.2-9.Final_redhat_00010.1.el8ea |
| redhat/eap7-narayana | <0:5.9.12-1.Final_redhat_00001.1.el8ea | 0:5.9.12-1.Final_redhat_00001.1.el8ea |
| redhat/eap7-picketbox | <0:5.0.3-9.Final_redhat_00008.1.el8ea | 0:5.0.3-9.Final_redhat_00008.1.el8ea |
| redhat/eap7-undertow | <0:2.0.39-1.SP2_redhat_00001.1.el8ea | 0:2.0.39-1.SP2_redhat_00001.1.el8ea |
| redhat/eap7-wildfly | <0:7.3.9-2.GA_redhat_00002.1.el8ea | 0:7.3.9-2.GA_redhat_00002.1.el8ea |
| redhat/eap7-wildfly-http-client | <0:1.0.29-1.Final_redhat_00002.1.el8ea | 0:1.0.29-1.Final_redhat_00002.1.el8ea |
| redhat/eap7-wildfly-transaction-client | <0:1.1.14-2.Final_redhat_00001.1.el8ea | 0:1.1.14-2.Final_redhat_00001.1.el8ea |
| redhat/eap7-undertow | <0:2.2.5-2.SP1_redhat_00001.1.el8ea | 0:2.2.5-2.SP1_redhat_00001.1.el8ea |
| redhat/eap7-undertow | <0:2.2.9-2.SP1_redhat_00001.1.el8ea | 0:2.2.9-2.SP1_redhat_00001.1.el8ea |
| redhat/eap7-undertow | <0:2.2.5-2.SP1_redhat_00001.1.el7ea | 0:2.2.5-2.SP1_redhat_00001.1.el7ea |
| redhat/eap7-undertow | <0:2.2.9-2.SP1_redhat_00001.1.el7ea | 0:2.2.9-2.SP1_redhat_00001.1.el7ea |
| Red Hat Fuse | =1.0 | |
| Red Hat Integration - Camel K | ||
| Red Hat Quarkus | ||
| JBoss Enterprise Application Platform | ||
| Red Hat OpenShift Application Runtimes | ||
| Red Hat Single Sign-On | ||
| Red Hat Undertow | <2.0.40 | |
| Red Hat Undertow | >=2.1.0<2.2.10 | |
| JBoss Enterprise Application Platform | =7.3 | |
| Red Hat Enterprise Linux | =6.0 | |
| Red Hat Enterprise Linux | =7.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| JBoss Enterprise Application Platform | =7.4 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2021-3690
- https://bugzilla.redhat.com/show_bug.cgi?id=1991299
- https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
- https://issues.redhat.com/browse/UNDERTOW-1935
- https://access.redhat.com/errata/RHSA-2021:3216
- https://access.redhat.com/errata/RHSA-2021:3218
- https://access.redhat.com/errata/RHSA-2021:3217
- https://access.redhat.com/errata/RHSA-2021:3219
- https://access.redhat.com/security/cve/cve-2021-3690
- https://access.redhat.com/errata/RHSA-2021:3471
- https://access.redhat.com/errata/RHSA-2021:3468
- https://access.redhat.com/errata/RHSA-2021:3466
- https://access.redhat.com/errata/RHSA-2021:3467
- https://access.redhat.com/errata/RHSA-2021:3425
- https://access.redhat.com/errata/RHSA-2021:3516
- https://access.redhat.com/errata/RHSA-2021:3534
- https://access.redhat.com/errata/RHSA-2021:3656
- https://access.redhat.com/errata/RHSA-2021:3658
- https://access.redhat.com/errata/RHSA-2021:3660
- https://access.redhat.com/errata/RHSA-2021:4767
- https://access.redhat.com/errata/RHSA-2021:5134
- https://access.redhat.com/errata/RHSA-2022:1029
- https://www.cve.org/CVERecord?id=CVE-2021-3690 https://nvd.nist.gov/vuln/detail/CVE-2021-3690
Parent vulnerabilities
(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.
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