CVE-2017-2670

moderate-risk
Published 2018-07-27

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.

Do I need to act?

~
6.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Debian Redhat

References (22)

Vendor Advisory http://rhn.redhat.com/errata/RHSA-2017-1409.html
Third Party Advisory http://www.securityfocus.com/bid/98965
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:1410
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:1411
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:1412
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:3454
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-2017:3458
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2670
Third Party Advisory https://www.debian.org/security/2017/dsa-3906
Vendor Advisory http://rhn.redhat.com/errata/RHSA-2017-1409.html
Third Party Advisory http://www.securityfocus.com/bid/98965
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:1410
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:1411
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:1412
Vendor Advisory https://access.redhat.com/errata/RHSA-2017:3454
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-2017:3458
and 2 more references
47
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 9/34 · Low
Exposure 12/34 · Low