CVE-2019-15753 – os-vif

Package

Manager: pip
Name: os-vif
Vulnerable Version: >=1.15.0 <1.15.2 || =1.16.0 || >=1.16.0 <1.17.0

Severity

Level: Critical

CVSS v3.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:H/SI:N/SA:H

EPSS: 0.00965 pctl0.75617

Details

OpenStack os-vif Ageing time of 0 disables linuxbridge MAC learning 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`.

Metadata

Created: 2022-05-24T16:55:04Z
Modified: 2024-05-02T13:11:32Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-mcpw-cp35-p3h8/GHSA-mcpw-cp35-p3h8.json
CWE IDs: ["CWE-770"]
Alternative ID: GHSA-mcpw-cp35-p3h8
Finding: F067
Auto approve: 1