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Posted to users@trafficserver.apache.org by Bryan Call <bc...@apache.org> on 2020/12/02 19:19:31 UTC

[ANNOUNCE] Apache Traffic Server negative cache option is vulnerable to a cache poisoning attack

Description:
ATS negative cache option is vulnerable to a cache poisoning attack.  If you have this option enabled, please upgrade or disable this feature.

CVE:
CVE-2020-17509

Vendor:
The Apache Software Foundation

Version Affected:
ATS 6.0.0 to 6.2.3
ATS 7.0.0 to 7.1.10
ATS 8.0.0 to 8.0.7

Mitigation:
6.x users should upgrade to 7.1.11, 8.0.8, or later versions
7.x users should upgrade to 7.1.11 or later versions
8.x users should upgrade to 8.0.8 or later versions

References:
	Downloads:
		https://trafficserver.apache.org/downloads <https://trafficserver.apache.org/downloads>
		(Please use backup sites from the link only if the mirrors are unavailable) 
	CVE:
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17509 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17509>

-Bryan