Security readout for executives and security teams
This is a denial-of-service issue in Undertow WebSocket handling. A non-clean TCP close can cause every IO thread to enter an infinite loop, making the affected service unavailable. It is network-reachable, needs no authentication, and affects availability only. Exposure is most likely in Java services using affected Undertow WebSocket server code, including vendor-packaged platforms covered by Red Hat and Debian advisories. Internet-facing WebSocket endpoints have the highest operational risk. Treat as a high-priority availability risk for exposed WebSocket services. It does not indicate data theft or code execution, but unauthenticated downtime potential justifies prompt patch validation and remediation planning. Mitigation focus: Upgrade Undertow deployments that are before 1.3.28 where vendor packaging supports it.; Apply relevant Red Hat or Debian security updates from the listed advisories.; Prioritize externally reachable WebSocket services before internal-only deployments..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-835: Exact CWE lookup
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Open ATT&CK lookupCVE-2017-2670 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.5HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2017:1411CVE reference · vendor-advisory, x_refsource_REDHAT
- DSA-3906CVE reference · vendor-advisory, x_refsource_DEBIAN
- RHSA-2017:3458CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2017:1410CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2017:1412CVE reference · vendor-advisory, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2670CVE reference · x_refsource_CONFIRM
- RHSA-2017:3455CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2017:3456CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2017:3454CVE reference · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Loop with Unreachable Exit Condition ('Infinite Loop')
Loop with Unreachable Exit Condition ('Infinite Loop') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.