CVE-2017-7670

high Apache
CVSS v3 Base Score
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
1.7%
Exploitation probability in 30 days
Top 17% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: July 10, 2017 (3230 days ago)
Last Modified: May 13, 2026
Vendor: Apache
Source: NVD

Description

The Traffic Router component of the incubating Apache Traffic Control project is vulnerable to a Slowloris style Denial of Service attack. TCP connections made on the configured DNS port will remain in the ESTABLISHED state until the client explicitly closes the connection or Traffic Router is restarted. If connections remain in the ESTABLISHED state indefinitely and accumulate in number to match the size of the thread pool dedicated to processing DNS requests, the thread pool becomes exhausted. Once the thread pool is exhausted, Traffic Router is unable to service any DNS request, regardless of transport protocol.

CWE

CWE-400

Affected Products

apache traffic control

References

🔗 lists.apache.org 🔗 lists.apache.org 🔗 lists.apache.org 🔗 lists.apache.org 🔗 lists.apache.org