# CVE-2022-3488: named may terminate unexpectedly when processing ECS options in repeated responses to iterative queries

> Attackers can cause BIND DNS server to crash by sending crafted iterative queries with broken ECS options, leading to denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Jan 2023
- **Updated:** 1 Apr 2025
- **Also known as:** GHSA-pq6j-95q4-4mhj

## What is CVE-2022-3488?

CVE-2022-3488 is a high-severity denial of service vulnerability in Isc Bind, published on 25 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Processing of repeated responses to the same query, where both responses contain ECS pseudo-options, but where the first is broken in some way, can cause BIND to exit with an assertion failure.

'Broken' in this context is anything that would cause the resolver to reject the query response, such as a mismatch between query and answer name.
This issue affects BIND 9 versions 9.11.4-S1 through 9.11.37-S1 and 9.16.8-S1 through 9.16.36-S1.

Weakness: CWE-617 (Reachable Assertion)

## Which versions are affected by CVE-2022-3488?

It affects 1 product.


Products: Isc Bind.

## How do I fix CVE-2022-3488?

No fix has been published for CVE-2022-3488 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-3488 being exploited?

There is no known exploitation of CVE-2022-3488 in the wild and no public exploit code.

## Other vulnerabilities in Isc Bind

- [CVE-2008-0122](https://insights.sbomify.com/CVE-2008-0122/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-0010](https://insights.sbomify.com/CVE-2001-0010/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-0011](https://insights.sbomify.com/CVE-2001-0011/): Memory corruption in n/a (critical 10.0)
- [CVE-2001-0013](https://insights.sbomify.com/CVE-2001-0013/): Memory corruption in n/a (critical 10.0)
- [CVE-2000-1029](https://insights.sbomify.com/CVE-2000-1029/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-3488 and fix it if it is affected.

What it is: CVE-2022-3488 is a high-severity denial of service vulnerability in Isc Bind, published on 25 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-3488 in the wild and no public exploit code.

Affected product: Isc Bind. 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-2022-3488/ (Markdown: https://insights.sbomify.com/CVE-2022-3488/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-3488
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-3488
- OSV: https://osv.dev/vulnerability/CVE-2022-3488

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-3488/
Summaries are generated and may contain mistakes; the official description above is the record.