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CVE

CVE-2021-3690

Undertow vulnerable to memory exhaustion due to buffer leak

Description

Buffer leak on incoming WebSocket PONG message(s) in Undertow before 2.0.40 and 2.2.10 can lead to memory exhaustion and allow a denial of service.

Base CVSS

7.5

EPSS Score

0.52%

Introduced Version

1.0.0.Beta2

Fix Available

2.2.10.Final,2.0.40.Final

Fix without Upgrading

Available Patches

Package

CVEs Fixed

Lines of Code Changed

Package Name

io.undertow:undertow-websockets-jsr

References

https://github.com/undertow-io/undertow/commit/c7e84a0b7efced38506d7d1dfea5902366973877

https://www.mend.io/vulnerability-database/CVE-2021-3690

https://access.redhat.com/security/cve/cve-2021-3690#cve-cvss-v3

https://github.com/undertow-io/undertow

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

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

https://nvd.nist.gov/vuln/detail/CVE-2021-3690

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

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