CVE-2017-7670
mediumpriority · track · 32EPSS 0.047 · 92 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
- Go github.com/apache/trafficcontrol< 0.0.0-20170531185407-738c10fa1b58osvUSpkg:golang/github.com/apache/trafficcontrol
- Go github.com/apache/trafficcontrol0.0.0 → 1.1.4-0.20170531185407-738c10fa1b58osvUSpkg:golang/github.com/apache/trafficcontrol
- Go github.com/apache/trafficcontrol2.0.0-RC0 → 2.0.0osvUSpkg:golang/github.com/apache/trafficcontrol
- Go github.com/apache/trafficcontrol2.1.0-RC0 → 2.1.0-RC1osvUSpkg:golang/github.com/apache/trafficcontrol
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-f2wr-c4c4-xjg7Apache Traffic Control vulnerable to Slowloris-style Denial of Service attack2022-05-13ghsa · osvUS
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0@%3Cusers.trafficcontrol.apache.org%3Ecnnvd
- https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c@%3Ccommits.trafficcontrol.apache.org%3Ecnnvd
- https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8@%3Ccommits.trafficcontrol.apache.org%3Ecnnvd
- https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0%40%3Cusers.trafficcontrol.apache.org%3Eenisa_euvd
- https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c%40%3Ccommits.trafficcontrol.apache.org%3Eenisa_euvd
- https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8%40%3Ccommits.trafficcontrol.apache.org%3Eenisa_euvd
- https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0%40%3Cusers.trafficcontrol.apache.org%3Envd
- https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c%40%3Ccommits.trafficcontrol.apache.org%3Envd
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