CVE-2017-2670

HIGH

7.5

CVSS Score

Published: July 27, 2018 at 03:00 PM UTC

Updated: June 17, 2026 at 01:16 AM UTC

4 products affected across 2 vendorsDebian LinuxJBoss Enterprise Application PlatformUndertow

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Severity

HIGH7.5

Exploit prediction

EPSS 4%

Description

It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux · Debiandrupal

95%

9.0

JBoss Enterprise Application Platform · Red Hatrpm

95%

6.0.0 7.0.0 7.1.0

redhat-enterprise-linux (environment)

Undertow · Red Hat

95%

v < 1.3.281.3.28.Final-redhat-4

Affected range stops below 1.3.28, so it looks safe — our inference, not a vendor statement

Enterprise Linux · Red Hatrpmdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references