CVE-2017-2670

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 8.03% Top 10%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: [UNKNOWN] undertow
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:1411 vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-1409.html vendor advisory
https://www.debian.org/security/2017/dsa-3906 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:3458 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1410 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1412 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2670 issue tracking vendor advisory
https://access.redhat.com/errata/RHSA-2017:3455 vendor advisory
https://access.redhat.com/errata/RHSA-2017:3456 vendor advisory
https://access.redhat.com/errata/RHSA-2017:3454 vendor advisory
http://www.securityfocus.com/bid/98965 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-2670?
CVE-2017-2670 has been scored as a high severity vulnerability.
How to fix CVE-2017-2670?
To fix CVE-2017-2670, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-2670 being actively exploited in the wild?
It is possible that CVE-2017-2670 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-2670?
CVE-2017-2670 affects [UNKNOWN] undertow.
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