# CVE-2016-10377: Integer overflow in n/a

> Remote attackers can bypass access control lists in Open vSwitch by sending malformed IP packets that trigger an integer underflow.

- **Severity:** High 8.8 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 29 May 2017
- **Updated:** 16 Sep 2024
- **Also known as:** DEBIAN-CVE-2016-10377, GHSA-w6j4-9556-fjfj

## What is CVE-2016-10377?

CVE-2016-10377 is a high-severity vulnerability in n/a, published on 29 May 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In Open vSwitch (OvS) 2.5.0, a malformed IP packet can cause the switch to read past the end of the packet buffer due to an unsigned integer underflow in `lib/flow.c` in the function `miniflow_extract`, permitting remote bypass of the access control list enforced by the switch.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2016-10377?

It affects 1 product.


Products: Openvswitch Openvswitch.

## How do I fix CVE-2016-10377?

Upgrade to a fixed version.

## Is CVE-2016-10377 being exploited?

There is no known exploitation of CVE-2016-10377 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-9264](https://insights.sbomify.com/CVE-2017-9264/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-9265](https://insights.sbomify.com/CVE-2017-9265/): Memory corruption in n/a (critical 9.8)
- [CVE-2016-2074](https://insights.sbomify.com/CVE-2016-2074/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-22563](https://insights.sbomify.com/CVE-2024-22563/): Denial of service in n/a (high 7.5)
- [CVE-2023-5366](https://insights.sbomify.com/CVE-2023-5366/): Openvswitch don't match packets on nd_target field (high 7.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-10377 and fix it if it is affected.

What it is: CVE-2016-10377 is a high-severity vulnerability in n/a, published on 29 May 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-10377 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2016-10377/ (Markdown: https://insights.sbomify.com/CVE-2016-10377/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-10377
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-10377
- OSV: https://osv.dev/vulnerability/CVE-2016-10377

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-10377/
Summaries are generated and may contain mistakes; the official description above is the record.