Description
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.
References (4)
Core 4
Core References
Exploit, Issue Tracking, Mitigation, Vendor Advisory x_refsource_misc
https://issues.redhat.com/browse/UNDERTOW-1935
Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1991299
Vendor Advisory x_refsource_misc
https://access.redhat.com/security/cve/CVE-2021-3690
Patch, Third Party Advisory x_refsource_misc
https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877
Scores
CVSS v3
7.5
EPSS
0.0028
EPSS Percentile
51.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-401
CWE-400
Status
published
Products (10)
io.undertow/undertow-core
0 - 2.0.40Maven
redhat/fuse
1.0
redhat/integration_camel_k
redhat/integration_camel_quarkus
redhat/jboss_enterprise_application_platform
redhat/jboss_enterprise_application_platform
7.3
redhat/jboss_enterprise_application_platform
7.4
redhat/openshift_application_runtimes
redhat/single_sign-on
redhat/undertow
< 2.0.40
Published
Aug 23, 2022
Tracked Since
Feb 18, 2026