Loop with Unreachable Exit Condition ('Infinite Loop') Affecting eap7-jboss-classfilewriter package, versions <0:1.2.1-2.Final_redhat_1.1.ep7.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.41% (91st percentile)

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  • Snyk IDSNYK-RHEL7-EAP7JBOSSCLASSFILEWRITER-5330828
  • published30 Mar 2023
  • disclosed7 Jun 2017

Introduced: 7 Jun 2017

CVE-2017-2670  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:7 eap7-jboss-classfilewriter to version 0:1.2.1-2.Final_redhat_1.1.ep7.el7 or higher.
This issue was patched in RHSA-2017:3455.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eap7-jboss-classfilewriter package and not the eap7-jboss-classfilewriter package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.