Denial of Service in Undertow Websocket Server by Red Hat
CVE-2017-2670

7.5HIGH

Key Information:

Vendor

[unknown]

Status
Undertow
Vendor
CVE Published:
27 July 2018

What is CVE-2017-2670?

The Undertow Websocket server prior to version 1.3.28 exhibits a vulnerability where a non-clean TCP close causes the server to enter an infinite loop on each I/O thread. This condition can lead to a Denial of Service, impacting the availability of services relying on the Websocket server. It is recommended that users update to a secure version to mitigate this risk. For more details and mitigation steps, please refer to the vendor advisories.

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Deploy the Patch

Affected Version(s)

undertow 1.3.28.Final-redhat-4

References

https://access.redhat.com/errata/RHSA-2017:1411
vendor-advisoryx_refsource_REDHAT
http://rhn.redhat.com/errata/RHSA-2017-1409.html
vendor-advisoryx_refsource_REDHAT
https://www.debian.org/security/2017/dsa-3906
vendor-advisoryx_refsource_DEBIAN

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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