CVE-2021-3690

moderate-risk

Published 2022-08-23

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.

Do I need to act?

0.28% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (9)

Fuse

Integration Camel K

Integration Camel Quarkus

Jboss Enterprise Application Platform

Openshift Application Runtimes

Single Sign-On

Undertow

Jboss Enterprise Application Platform

Affected Vendors

Redhat

References (8)

Vendor Advisory https://access.redhat.com/security/cve/CVE-2021-3690

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1991299

Patch https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea590236...

Exploit https://issues.redhat.com/browse/UNDERTOW-1935

Vendor Advisory https://access.redhat.com/security/cve/CVE-2021-3690

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1991299

Patch https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea590236...

Exploit https://issues.redhat.com/browse/UNDERTOW-1935

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 1/34 · Minimal

Exposure 15/34 · Moderate