{"id":"PYSEC-2017-93","details":"A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority information for each stream, and would therefore allocate unbounded amounts of memory. Attempting to actually use a tree like this would also cause extremely high CPU usage to maintain the tree.","aliases":["CVE-2016-6580","GHSA-h3q4-6j7f-r24c"],"modified":"2024-08-30T23:58:07.907253Z","published":"2017-01-10T15:59:00Z","references":[{"type":"WEB","url":"https://python-hyper.org/priority/en/latest/security/CVE-2016-6580.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/92311"}],"affected":[{"package":{"name":"priority","ecosystem":"PyPI","purl":"pkg:pypi/priority"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0"}]}],"versions":["0.0.1","1.0.0","1.1.0","1.1.1"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/priority/PYSEC-2017-93.yaml"}}],"schema_version":"1.7.3"}