Date: Tue, 6 Jan 2015 21:42:20 +1300 From: Matthew Daley <mattd@...fuzz.com> To: oss-security@...ts.openwall.com Cc: cve-assign@...re.org Subject: CVE request / advisory: Apache Traffic Server 5.0.0 - 5.1.1 Hi, I'd like to request a CVE ID for this issue. It was found in Apache Traffic Server (http://trafficserver.apache.org/), an open-source caching proxy webserver. This is the first such request but the issue has been semi-public for a few weeks now; this message serves as an advisory as well. (Note this probably needs a CVE-2014-* ID) Affected software: Apache Traffic Server Description: Receiving a HTTP TRACE request containing a "Max-Forwards" header with a value of "0" will cause the traffic_server process to crash with an assertion failure, even in release builds. The parent process, traffic_manager, will restart the traffic_server process when it sees that it has crashed. However, it takes several seconds before the new process is ready to handle requests, during which the server appears unresponsive to the outside world. Also, traffic_manager will queue incoming requests until the new process is ready to handle them. These queued requests might consist of more of the same request that caused the traffic_server process to crash in the first place. This allows a remote attacker to perform an effective DoS of the server with very little resources by simply sending the crashing request repeatedly. Affected versions: 5.0.0 - 5.1.1 (5.x.x series before 5.1.2) Fixed version: 5.1.2 Bug entry: https://issues.apache.org/jira/browse/TS-3223 Fix: https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;a=commit;h=8b5f0345dade6b2822d9b52c8ad12e63011a5c12 Release notes: https://issues.apache.org/jira/secure/ReleaseNote.jspa?version=12327089&styleName=Html&projectId=12310963 Reported by: Matthew Daley Please let me know if you need any further information. Thanks, - Matthew Daley
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