CVE Vulnerabilities

CVE-2016-6580

Published: Jan 10, 2017 | Modified: Jan 27, 2017
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Affected Software

Name Vendor Start Version End Version
Python_priority_library Python 1.1.0 1.1.0
Python_priority_library Python 1.0.0 1.0.0
Python_priority_library Python 1.1.1 1.1.1

References