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CVE-2017-7670 Apache Traffic Control vulnerable to Slowloris-style Denial of Service attack

HighCVSS 7.5 EPSS 4.7%
Published
Updated
Exploit status
No public exploit known
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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.

Affected products

ProductAffected versionsFixed in
apache github.com/apache/trafficcontrol(Go) >= 1.1.4, < 1.8.1 1.8.1
apache github.com/apache/trafficcontrol(Go) >= 2.0.0-RC0, < 2.0.0 2.0.0
apache github.com/apache/trafficcontrol(Go) >= 2.1.0-RC0, < 2.1.0-RC1 2.1.0-RC1
apache github.com/apache/trafficcontrol(Go) = 2.1.0-RC0 No fix listed
apache github.com/apache/trafficcontrol(Go) < 0.0.0-20170531185407-738c10fa1b58 0.0.0-20170531185407-738c10fa1b58
apache github.com/apache/trafficcontrol(Go) >= 0.0.0, < 1.1.4-0.20170531185407-738c10fa1b58 1.1.4-0.20170531185407-738c10fa1b58
apache traffic control <= 1.8.0 No fix listed
apache traffic control = 1.8.1-rc0 No fix listed
apache traffic control = 2.0.0-rc1 No fix listed
apache traffic control = 2.0.0-rc2 No fix listed
apache traffic control = 2.0.0-rc3 No fix listed
apache traffic control = 2.0.0-rc4 No fix listed
apache traffic control = 2.0.0-rc5 No fix listed
apache traffic control = 2.0.0-rc6 No fix listed
Apache Traffic Control = 1.8.0 incubating No fix listed
Apache Traffic Control = 2.0.0 RC0 incubating No fix listed

References