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vulnerability

Debian: CVE-2019-15753: python-os-vif -- security update

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
Aug 28, 2019
Added
Jul 30, 2024
Modified
Mar 30, 2026

Description

In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC aging time of 0 disables MAC learning in linuxbridge, forcing obligatory Ethernet flooding of non-local destinations, which both impedes network performance and allows users to possibly view the content of packets for instances belonging to other tenants sharing the same network. Only deployments using the linuxbridge backend are affected. This occurs in PyRoute2.add() in internal/command/ip/linux/impl_pyroute2.py.

Solution

debian-upgrade-python-os-vif
Title
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