CVE catalog
CVE-2019-15753
python-os-vif: CVE-2019-15753
- Severity
- Medium · CVSS 5.2
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.61% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-os-vif | sid | 5.2.2-1 | fixed |
| Debian | python-os-vif | forky | 5.2.2-1 | fixed |
| Debian | python-os-vif | trixie | 4.1.0-2 | fixed |
| Debian | python-os-vif | bookworm | 3.0.0-2 | fixed |
| Ubuntu | python-os-vif | 20.04 | 1.17.0-0ubuntu1 | vulnerable |
| Ubuntu | python-os-vif | 20.04 | 2.0.0-0ubuntu1 | vulnerable |
| Ubuntu | python-os-vif | 20.04 | 2.0.0-0ubuntu2 | vulnerable |
| Ubuntu | python-os-vif | 22.04 | 2.6.0-0ubuntu1 | vulnerable |
| Ubuntu | python-os-vif | 22.04 | 2.7.0-0ubuntu1 | vulnerable |
| Ubuntu | python-os-vif | 22.04 | 2.7.1-0ubuntu1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-os-vif | source | sid | 1.15.2-1 | low | Not reported | [939288] |
| Debian | python-os-vif | source | forky | 1.15.2-1 | low | Not reported | [939288] |
| Debian | python-os-vif | source | trixie | 1.15.2-1 | low | Not reported | [939288] |
| Debian | python-os-vif | source | bookworm | 1.15.2-1 | low | Not reported | [939288] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-os-vif]Fixed
Source package: [python-os-vif]
Details (2)
3.0.0-2· all · bookwormFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · bookworm; dsa · python-os-vif · debian · 12
3.0.0-2· all · bookwormFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · bookworm; dsa · python-os-vif · debian · 12
- [python-os-vif-doc]Fixed
Source package: [python-os-vif]
Details (2)
3.0.0-2· all · bookwormFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · bookworm; dsa · python-os-vif · debian · 12
3.0.0-2· all · bookwormFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · bookworm; dsa · python-os-vif · debian · 12
[Debian 13 (Trixie)]
- [python3-os-vif]Fixed
Source package: [python-os-vif]
Details (2)
4.1.0-2· all · trixieFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · 13
4.1.0-2· all · trixieFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · 13
- [python-os-vif-doc]Fixed
Source package: [python-os-vif]
Details (2)
4.1.0-2· all · trixieFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · 13
4.1.0-2· all · trixieFixed · Fixed:
1.15.2-1dsa · python-os-vif · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-15753]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-15753]
- [https://security-tracker.debian.org/tracker/CVE-2019-15753]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-15753.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]