# ALBA-2021:2576: NetworkManager bug fix and enhancement update

> Bug fixes for NetworkManager address issues with connection removal, bonding, and traffic control, potentially preventing network disruptions.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Not stated
- **Victim action needed:** Not stated
- **Fix available:** Yes
- **Published:** 29 Jun 2021

## What is ALBA-2021:2576?

ALBA-2021:2576 is a vulnerability in NetworkManager-libnm-devel, published on 29 Jun 2021. 

### Official description

NetworkManager is a system network service that manages network devices and
connections, attempting to keep active network connectivity when available.
Its capabilities include managing Ethernet, wireless, mobile broadband
(WWAN), and PPPoE devices, as well as providing VPN integration with a
variety of different VPN services.

Bug Fix(es) and Enhancement(s):

* [NMCI] Automatic connection not removed when veth device gets removed
(BZ#1965336)

* [SNO][assisted-operator][nmstate] Bond Interface is down when booting
from the discovery ISO (BZ#1965337)

* NetworkManager doesn't honour tlb_dynamic_lb=0 when creating a bonding
device with mode=balance-alb (BZ#1965948)

* Provide a way to ignore existing TC qdiscs and filters (BZ#1972566)

## Which versions are affected by ALBA-2021:2576?


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `NetworkManager-libnm-devel` | AlmaLinux:8 | All versions | 1:1.30.0-9.el8_4 |

## How do I fix ALBA-2021:2576?

Apply the vendor's patch.

## Is ALBA-2021:2576 being exploited?

There is no known exploitation of ALBA-2021:2576 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for ALBA-2021:2576 and fix it if it is affected.

What it is: ALBA-2021:2576 is a vulnerability in NetworkManager-libnm-devel, published on 29 Jun 2021. 
Exploitation: There is no known exploitation of ALBA-2021:2576 in the wild and no public exploit code.

Affected product: NetworkManager-libnm-devel. 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/ALBA-2021-2576/ (Markdown: https://insights.sbomify.com/ALBA-2021-2576/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/ALBA-2021:2576

---
From sbomify Insights: https://insights.sbomify.com/ALBA-2021-2576/
Summaries are generated and may contain mistakes; the official description above is the record.