# CVE-2022-32166: openvswitch: In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c

CVE-2022-32166 is fixed in 15 products on 1 platform, first by openvswitch-common 2.9.8-0ubuntu0.18.04.3, released September 28, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-32166
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0061
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 28, 2022

## Description

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | openvswitch Debian 12.15 (bookworm) | 2.13.0+dfsg1-1 | [DEBIAN-CVE-2022-32166](https://patchblox.com/security/data/fix/linux/debian-cve-2022-32166.md) | Sep 28, 2022 |
| Linux | openvswitch Debian 13.5 (trixie) | 2.13.0+dfsg1-1 | [DEBIAN-CVE-2022-32166](https://patchblox.com/security/data/fix/linux/debian-cve-2022-32166.md) | Sep 28, 2022 |
| Linux | openvswitch Debian 14 | 2.13.0+dfsg1-1 | [DEBIAN-CVE-2022-32166](https://patchblox.com/security/data/fix/linux/debian-cve-2022-32166.md) | Sep 28, 2022 |
| Linux | openvswitch-common Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-common 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-common-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | openvswitch-pki Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-pki 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-pki-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | openvswitch-switch Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-switch 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-switch-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | openvswitch-switch-dpdk Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-switch-dpdk 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-switch-dpdk-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | openvswitch-test Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-test 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-test-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | openvswitch-testcontroller Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-testcontroller 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-testcontroller-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | openvswitch-vtep Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [openvswitch-vtep 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openvswitch-vtep-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | ovn-central Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [ovn-central 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ovn-central-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | ovn-common Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [ovn-common 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ovn-common-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | ovn-controller-vtep Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [ovn-controller-vtep 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ovn-controller-vtep-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | ovn-docker Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [ovn-docker 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ovn-docker-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | ovn-host Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [ovn-host 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ovn-host-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | python-openvswitch Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [python-openvswitch 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-openvswitch-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |
| Linux | python3-openvswitch Ubuntu 18.04.6 LTS (bionic) | 2.9.8-0ubuntu0.18.04.3 | [python3-openvswitch 2.9.8-0ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-openvswitch-2.9.8-0ubuntu0.18.04.3.md) | Sep 28, 2022 |

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