VDB
CVE-2019-15753
CVE-2019-15753
PUBLISHED
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.
EPSS 0.97% · 76.9th percentile
Risk Scores
EPSS Score
0.97%
76.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | python-os-vif | 2.6.0-0ubuntu1, 0, 2.7.0-0ubuntu1 |
| Ubuntu:20.04:LTS | python-os-vif | 0, 1.17.0-0ubuntu1, 2.0.0-0ubuntu1 |
Exploit Intelligence
- https://launchpad.net/bugs/1837252 (circl)
- https://review.opendev.org/672834 (circl)
- https://review.opendev.org/678098 (circl)
- https://security.openstack.org/ossa/OSSA-2019-004.html (circl)
- [oss-security] 20190829 [OSSA-2019-004] Ageing time of 0 disables linuxbridge MAC learning (CVE-2019-15753) (circl)
Timeline
- Aug 28, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-15753 third-party-advisory
- https://security.openstack.org/ossa/OSSA-2019-004.html third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/08/29/2 third-party-advisory
- https://review.opendev.org/672834 third-party-advisory
- https://review.opendev.org/678098 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-15753 third-party-advisory