CVE-2021-3859
First published: Mon Oct 04 2021(Updated: )
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/eap7-undertow | <0:2.0.41-2.SP2_redhat_00001.1.el6ea | 0:2.0.41-2.SP2_redhat_00001.1.el6ea |
| redhat/eap7-undertow | <0:2.0.41-2.SP2_redhat_00001.1.el7ea | 0:2.0.41-2.SP2_redhat_00001.1.el7ea |
| redhat/eap7-undertow | <0:2.0.41-2.SP2_redhat_00001.1.el8ea | 0:2.0.41-2.SP2_redhat_00001.1.el8ea |
| redhat/eap7-undertow | <0:2.2.13-1.SP2_redhat_00001.1.el8ea | 0:2.2.13-1.SP2_redhat_00001.1.el8ea |
| redhat/eap7-undertow | <0:2.2.13-1.SP2_redhat_00001.1.el7ea | 0:2.2.13-1.SP2_redhat_00001.1.el7ea |
| redhat/rh-sso7-keycloak | <0:15.0.4-1.redhat_00003.1.el7 | 0:15.0.4-1.redhat_00003.1.el7 |
| redhat/rh-sso7-keycloak | <0:15.0.4-1.redhat_00003.1.el8 | 0:15.0.4-1.redhat_00003.1.el8 |
| redhat/redhat-sso | <7-sso75-openshift-rhel8 | 7-sso75-openshift-rhel8 |
| Redhat Jboss Enterprise Application Platform | =7.3 | |
| Redhat Jboss Enterprise Application Platform | =7.4 | |
| Redhat Single Sign-on | =7.4.10 | |
| Redhat Single Sign-on | =7.5.1 | |
| Redhat Undertow | <2.2.15 | |
| Netapp Cloud Secure Agent | ||
| NetApp OnCommand Insight | ||
| NetApp OnCommand Workflow Automation |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2021-3859
- https://bugzilla.redhat.com/show_bug.cgi?id=2010378
- https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2
- https://github.com/undertow-io/undertow/pull/1296
- https://issues.redhat.com/browse/UNDERTOW-1979
- https://security.netapp.com/advisory/ntap-20221201-0004/
- https://issues.redhat.com/browse/EAPSUP-651
- https://access.redhat.com/support/policy/updates/jboss_notes
- https://access.redhat.com/errata/RHSA-2022:0400
- https://access.redhat.com/errata/RHSA-2022:0401
- https://access.redhat.com/errata/RHSA-2022:0404
- https://access.redhat.com/errata/RHSA-2022:0406
- https://access.redhat.com/errata/RHSA-2022:0405
- https://access.redhat.com/errata/RHSA-2022:0407
- https://access.redhat.com/errata/RHSA-2022:0408
- https://access.redhat.com/errata/RHSA-2022:0409
- https://access.redhat.com/errata/RHSA-2022:0410
- https://access.redhat.com/errata/RHSA-2022:0415
- https://access.redhat.com/errata/RHSA-2022:0448
- https://access.redhat.com/errata/RHSA-2022:0447
- https://access.redhat.com/security/cve/cve-2021-3859
- https://access.redhat.com/errata/RHSA-2022:1179
- https://access.redhat.com/errata/RHSA-2022:5532
- https://www.cve.org/CVERecord?id=CVE-2021-3859 https://nvd.nist.gov/vuln/detail/CVE-2021-3859
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2021-3859?
CVE-2021-3859 is a vulnerability found in Undertow that allows an attacker to carry out denial of service attacks.
What is the severity of CVE-2021-3859?
The severity of CVE-2021-3859 is high, with a severity value of 7.5.
Which software is affected by CVE-2021-3859?
The software affected by CVE-2021-3859 includes Redhat Jboss Enterprise Application Platform versions 7.3 and 7.4, Redhat Single Sign-on versions 7.4.10 and 7.5.1, and Redhat Undertow up to version 2.2.15.
How can I fix CVE-2021-3859?
To fix CVE-2021-3859, update the affected software to the appropriate version provided by Redhat.
Where can I find more information about CVE-2021-3859?
More information about CVE-2021-3859 can be found on the CVE website, the NIST NVD website, the Redhat Bugzilla website, and the Redhat Access website.
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