ovs - buffer over-read
Published Sep 28, 2022
8.6
HIGHCVSS 3.1
EPSS 0.61%
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.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<=v2.5.0
- Version v0.90.0StatusaffectedConstraints<unspecified
- Version
Configuration 1
- ≥ 0.90.0 · ≤ 2.5.0
Configuration 2
- 10.0
No data.
Fast Datapath for RHEL 7
openvswitch
Not affected
Fast Datapath for RHEL 7
openvswitch2.10
Not affected
Fast Datapath for RHEL 7
openvswitch2.11
Not affected
Fast Datapath for RHEL 7
openvswitch2.12
Not affected
Fast Datapath for RHEL 7
openvswitch2.13
Not affected
Fast Datapath for RHEL 8
openvswitch2.11
Not affected
Fast Datapath for RHEL 8
openvswitch2.12
Not affected
Fast Datapath for RHEL 8
openvswitch2.13
Not affected
Fast Datapath for RHEL 8
openvswitch2.15
Not affected
Fast Datapath for RHEL 8
openvswitch2.16
Not affected
Fast Datapath for RHEL 8
openvswitch2.17
Not affected
Fast Datapath for RHEL 9
openvswitch2.17
Not affected
Red Hat Enterprise Linux 7
openvswitch
Affected
Red Hat OpenShift Container Platform 4
openvswitch2.13
Not affected
Red Hat OpenShift Container Platform 4
openvswitch2.15
Not affected
Red Hat OpenShift Container Platform 4
openvswitch2.16
Not affected
Red Hat OpenShift Container Platform 4
openvswitch2.17
Not affected
Red Hat OpenStack Platform 13 (Queens)
openvswitch
Not affected
Red Hat OpenStack Platform 13 (Queens)
openvswitch2.11
Not affected
Red Hat OpenStack Platform 13 (Queens)
rhosp-openvswitch
Not affected
Red Hat Virtualization 4
openvswitch2.10
Not affected
Red Hat Virtualization 4
openvswitch2.11
Not affected
Red Hat Virtualization 4
rhv-openvswitch
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Fast Datapath for RHEL 7 | openvswitch | Not affected | n/a |
| Fast Datapath for RHEL 7 | openvswitch2.10 | Not affected | n/a |
| Fast Datapath for RHEL 7 | openvswitch2.11 | Not affected | n/a |
| Fast Datapath for RHEL 7 | openvswitch2.12 | Not affected | n/a |
| Fast Datapath for RHEL 7 | openvswitch2.13 | Not affected | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.11 | Not affected | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.12 | Not affected | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.13 | Not affected | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.15 | Not affected | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.16 | Not affected | n/a |
| Fast Datapath for RHEL 8 | openvswitch2.17 | Not affected | n/a |
| Fast Datapath for RHEL 9 | openvswitch2.17 | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openvswitch | Affected | n/a |
| Red Hat OpenShift Container Platform 4 | openvswitch2.13 | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openvswitch2.15 | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openvswitch2.16 | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openvswitch2.17 | Not affected | n/a |
| Red Hat OpenStack Platform 13 (Queens) | openvswitch | Not affected | n/a |
| Red Hat OpenStack Platform 13 (Queens) | openvswitch2.11 | Not affected | n/a |
| Red Hat OpenStack Platform 13 (Queens) | rhosp-openvswitch | Not affected | n/a |
| Red Hat Virtualization 4 | openvswitch2.10 | Not affected | n/a |
| Red Hat Virtualization 4 | openvswitch2.11 | Not affected | n/a |
| Red Hat Virtualization 4 | rhv-openvswitch | Not affected | n/a |
No package ranges for this CVE.
Remediation
Vendor solution
Update version to v2.5.1 or later
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed May 21, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.61% (0.00606) | 47.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00529) | 40.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.91% (0.00909) | 74.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00096) | 42.15th | v3 (v2023.03.01) |
| Mar 20, 2024 | 0.10% (0.00096) | 39.25th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.08% (0.00084) | 33.75th | v3 (v2023.03.01) |
| Dec 21, 2023 | 0.06% (0.00064) | 26.39th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.06% (0.00060) | 24.15th | v3 (v2023.03.01) |
| Oct 31, 2023 | 0.33% (0.00326) | 67.56th | v3 (v2023.03.01) |
| Oct 5, 2023 | 0.29% (0.00293) | 65.60th | v3 (v2023.03.01) |
| Aug 5, 2023 | 0.18% (0.00179) | 54.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00149) | 49.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.57% (0.04571) | 88.92th | v2 (v2022.01.01) |
| Oct 30, 2022 | 4.57% (0.04571) | 88.59th | v2 (v2022.01.01) |
| Sep 29, 2022 | 1.98% (0.01978) | 78.61th | v2 (v2022.01.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2022-32166 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2130577 Issue Tracking
- https://github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73 PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00036.html mailing-listMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-32166
- https://www.cve.org/CVERecord?id=CVE-2022-32166
- https://www.mend.io/vulnerability-database/CVE-2022-32166 Third Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2022-32166 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2130577 | Issue Tracking | |
| https://github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73 | PatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00036.html | mailing-listMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2022-32166 | ||
| https://www.cve.org/CVERecord?id=CVE-2022-32166 | ||
| https://www.mend.io/vulnerability-database/CVE-2022-32166 | Third Party Advisory |
Change history (0)
No recorded changes yet.