PT-2026-53522 · Pypi · Os-Vif

Publicado 2026-06-29 · Atualizado 2026-06-29

OSV

CVSS v3.1

9.1

Crítica

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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.

Correção

Identificadores relacionados

PYSEC-2026-440

Produtos afetados

Os-Vif

Referências · 12

• https://github.com/openstack/os-vif · Nota
• https://github.com/openstack/os-vif/commit/655c83d706f5de8a8cf23430782e065219297aef · Nota
• https://github.com/openstack/os-vif/commit/ec9d5430300c908ea9a1c64151eee7af522a44e7 · Nota
• http://openwall.com/lists/oss-security/2019/08/29/2 · Nota
• https://pypi.org/project/os-vif · Nota
• https://github.com/advisories/GHSA-mcpw-cp35-p3h8 · Nota
• https://security.openstack.org/ossa/OSSA-2019-004.html · Nota
• https://review.opendev.org/678098 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2019-15753 · Nota de Segurança
• https://review.opendev.org/672834 · Nota
• https://osv.dev/vulnerability/PYSEC-2026-440 · Aviso do Fabricante
• https://launchpad.net/bugs/1837252 · Nota