#VU20927 Resource management error in Apache Traffic Control - CVE-2017-7670

Vulnerability identifier: #VU20927

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-7670

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Traffic Control
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect processing of established TCP connections to a configured DNS port. A remote attacker can create an unlimited number of TCP connections to DNS port without closing them and perform a Slowloris style Denial of Service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Traffic Control: 1.1.2 - 2.2.0

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External 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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.