ovs - buffer over-read
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.
- Published
- Sep 28, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.6% · 47th percentile
- CWE
- CWE-125
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Report tools
Action score
24
Monitor
Low priority for now.
- CVSS
- 24 / 40 · 6.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.6%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cloudbase | open vswitch | cpe:2.3:a:cloudbase:open_vswitch |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cloudbase open vswitch0.90.0 and later · up to 2.5.0 inclusive
- debian debian linux10.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Mend). Independent of NVD's CPE analysis and usually ahead of it.
ovs ovs
- v0.90.0 and later · before unspecifiedaffected
- unspecified and later · up to and including v2.5.0affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | openvswitch | before 2.10.7+ds1-0+deb10u2 | 2.10.7+ds1-0+deb10u2 |
| Debian:12 | openvswitch | before 2.13.0+dfsg1-1 | 2.13.0+dfsg1-1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP4 | dpdk | before 18.11.9-150100.4.23.1 | 18.11.9-150100.4.23.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP4 | dpdk | before 18.11.9-150100.4.23.1 | 18.11.9-150100.4.23.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP4 | openvswitch | before 2.11.5-150100.3.18.2 | 2.11.5-150100.3.18.2 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP4 | openvswitch | before 2.11.5-150100.3.18.2 | 2.11.5-150100.3.18.2 |
| SUSE:Linux Enterprise Server 12 SP2-BCL | openvswitch | before 2.5.11-25.34.1 | 2.5.11-25.34.1 |
| SUSE:Linux Enterprise Server 12 SP2-BCL | openvswitch-dpdk | before 2.5.11-25.34.1 | 2.5.11-25.34.1 |
| SUSE:Linux Enterprise Server 12 SP5 | openvswitch | before 2.11.5-3.12.1 | 2.11.5-3.12.1 |
| SUSE:OpenStack Cloud 9 | openvswitch | before 2.8.10-4.33.1 | 2.8.10-4.33.1 |
Same product
cloudbase: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-1668A flaw was found in openvswitch (OVS).32Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:openvswitch | 2.13.0+dfsg1-1 · Debian:12 | Package registry (OSV) |
| opensuse:dpdk | 18.11.9-150100.4.23.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:openvswitch | 2.11.5-150100.3.18.2 · openSUSE:Leap 15.4 | Package registry (OSV) |
| suse:dpdk | 18.11.9-150100.4.23.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP4 | Package registry (OSV) |
| suse:openvswitch | 2.11.5-150100.3.18.2 · SUSE:Linux Enterprise Module for Package Hub 15 SP4 | Package registry (OSV) |
| suse:openvswitch | 2.11.5-3.12.1 · SUSE:Linux Enterprise Server 12 SP5 | Package registry (OSV) |
| suse:openvswitch-dpdk | 2.5.11-25.34.1 · SUSE:Linux Enterprise Server 12 SP2-BCL | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-125 · Out-of-bounds ReadCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73
- lists.debian.org/debian-lts-announce/2022/10/msg00036.html
- www.mend.io/vulnerability-database/CVE-2022-32166
Vendor advisories and official records. Exploit/PoC links are deliberately left out.