CVE-2017-2670 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://rhn.redhat.com/errata/RHSA-2017-1409.html http://www.securityfocus.com/bid/98965 https://access.redhat.com/errata/RHSA-2017:1410 https://access.redhat.com/errata/RHSA-2017:1411 https://access.redhat.com/errata/RHSA-2017:1412 https://access.redhat.com/errata/RHSA-2017:3454 https://access.redhat.com/errata/RHSA-2017:3455 https://access.redhat.com/errata/RHSA-2017:3456 https://access.redhat.com/errata/RHSA-2017:3458 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2670 https://www.debian.org/security/2017/dsa-3906

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5