PT-2017-17874 · Apache · Apache Traffic Control

Published 2017-07-10 · Updated 2022-05-13 · CVE-2017-7670

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Apache Traffic Control (affected versions not specified)

Description The Traffic Router component of the 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2017-7670

GHSA-F2WR-C4C4-XJG7

Affected Products

Apache Traffic Control

References · 13

• https://nvd.nist.gov/vuln/detail/CVE-2017-7670 · Security Note
• https://osv.dev/vulnerability/GHSA-f2wr-c4c4-xjg7 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-7670 · Vendor Advisory
• https://github.com/apache/trafficcontrol · Note
• https://github.com/apache/trafficcontrol/commit/738c10fa1b5861e4cc3944dc7c3065d16f4a708c · Note
• https://github.com/apache/trafficcontrol/pull/633 · Note
• https://github.com/apache/trafficcontrol/pull/634 · Note
• https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0%40%3Cusers.trafficcontrol.apache.org%3E · Note
• https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c%40%3Ccommits.trafficcontrol.apache.org%3E · Note
• https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8@%3Ccommits.trafficcontrol.apache.org%3E · Note
• https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c@%3Ccommits.trafficcontrol.apache.org%3E · Note
• https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0@%3Cusers.trafficcontrol.apache.org%3E · Note
• https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8%40%3Ccommits.trafficcontrol.apache.org%3E · Note