CVE-2016-6580
- Source
- https://cve.org/CVERecord?id=CVE-2016-6580
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6580.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2016-6580
- Aliases
- Published
- 2017-01-10T15:59:00.377Z
- Modified
- 2026-07-08T12:06:08.970574Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- 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.
- References
Affected packages
Git / github.com/python-hyper/priority
Affected ranges
- Type
- GIT
- Repo
- https://github.com/python-hyper/priority
- Events
-
IntroducedLast affected
- Database specific
{ "source": "CPE_STRING", "cpe": [ "cpe:2.3:a:python:python_priority_library:1.0.0:*:*:*:*:*:*:*", "cpe:2.3:a:python:python_priority_library:1.1.0:*:*:*:*:*:*:*", "cpe:2.3:a:python:python_priority_library:1.1.1:*:*:*:*:*:*:*" ], "extracted_events": [ { "introduced": "1.0.0" }, { "last_affected": "1.0.0" }, { "introduced": "1.1.0" }, { "last_affected": "1.1.0" }, { "introduced": "1.1.1" }, { "last_affected": "1.1.1" } ] }