CVE-2017-7670
First published: Fri Jul 07 2017(Updated: )
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.
Credit: security@apache.org security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Traffic Control | <=1.8.0 | |
| Apache Traffic Control | =1.8.1-rc0 | |
| Apache Traffic Control | =2.0.0-rc1 | |
| Apache Traffic Control | =2.0.0-rc2 | |
| Apache Traffic Control | =2.0.0-rc3 | |
| Apache Traffic Control | =2.0.0-rc4 | |
| Apache Traffic Control | =2.0.0-rc5 | |
| Apache Traffic Control | =2.0.0-rc6 | |
| go/github.com/apache/trafficcontrol | =2.1.0-RC0 | 2.1.0-RC1 |
| go/github.com/apache/trafficcontrol | >=2.0.0-RC0<2.0.0 | 2.0.0 |
| go/github.com/apache/trafficcontrol | >=1.8.0<1.8.1 | 1.8.1 |
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Reference Links
- https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0@%3Cusers.trafficcontrol.apache.org%3E
- https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c@%3Ccommits.trafficcontrol.apache.org%3E
- https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8@%3Ccommits.trafficcontrol.apache.org%3E
- https://nvd.nist.gov/vuln/detail/CVE-2017-7670
- https://github.com/apache/trafficcontrol/pull/633
- https://github.com/apache/trafficcontrol/pull/634
- https://github.com/apache/trafficcontrol/commit/738c10fa1b5861e4cc3944dc7c3065d16f4a708c
- https://github.com/advisories/GHSA-f2wr-c4c4-xjg7 (Advisory)
- https://lists.apache.org/thread.html/42b207e9f526353b504591684bd02a5e9fcb4b8f28534253d07740a0%40%3Cusers.trafficcontrol.apache.org%3E
- https://lists.apache.org/thread.html/bb09fc29e9c2ee85b118a3d5748a8a523d30cf691ff8b606c6a1748c%40%3Ccommits.trafficcontrol.apache.org%3E
- https://lists.apache.org/thread.html/r3c675031ac220b5eae64a9c84a03ee60045c6045738607dca4a96cb8%40%3Ccommits.trafficcontrol.apache.org%3E
Frequently Asked Questions
What is the severity of CVE-2017-7670?
CVE-2017-7670 is classified as a Denial of Service vulnerability.
How do I fix CVE-2017-7670?
To fix CVE-2017-7670, upgrade to Apache Traffic Control version 2.1.0-RC1 or later.
Which versions of Apache Traffic Control are affected by CVE-2017-7670?
CVE-2017-7670 affects versions up to and including 1.8.0 and certain release candidates of 2.0.0.
What type of attack does CVE-2017-7670 enable?
CVE-2017-7670 enables a Slowloris style Denial of Service attack.
What component of Apache Traffic Control is impacted by CVE-2017-7670?
The Traffic Router component of Apache Traffic Control is impacted by CVE-2017-7670.
- collector/nvd-index
- agent/type
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-f2wr-c4c4-xjg7
- alias/CVE-2017-7670
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- agent/softwarecombine
- agent/description
- collector/nvd-cve
- source/NVD
- agent/author
- agent/references
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/trending
- agent/tags
- agent/source
- vendor/apache
- canonical/apache traffic control
- version/apache traffic control/1.8.0
- version/apache traffic control/1.8.1-rc0
- version/apache traffic control/2.0.0-rc1
- version/apache traffic control/2.0.0-rc2
- version/apache traffic control/2.0.0-rc3
- version/apache traffic control/2.0.0-rc4
- version/apache traffic control/2.0.0-rc5
- version/apache traffic control/2.0.0-rc6
- package-manager/go