# CVE-2009-4022: Other in n/a

> Remote attackers can poison DNS cache in ISC BIND when DNSSEC validation is enabled but checking disabled, leading to potential traffic redirection.

- **Severity:** Low 2.6 (`AV:N/AC:H/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 Nov 2009
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2009-4022, DSA-1961-1, GHSA-2jw5-w5pg-58h8, RHSA-2009:1620

## What is CVE-2009-4022?

CVE-2009-4022 is a low-severity vulnerability in Isc Bind, published on 25 Nov 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Unspecified vulnerability in ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P4, 9.5 before 9.5.2-P1, 9.6 before 9.6.1-P2, and 9.7 beta before 9.7.0b3, with DNSSEC validation enabled and checking disabled (CD), allows remote attackers to conduct DNS cache poisoning attacks by receiving a recursive client query and sending a response that contains an Additional section with crafted data, which is not properly handled when the response is processed "at the same time as requesting DNSSEC records (DO)," aka Bug 20438.

## Which versions are affected by CVE-2009-4022?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `bind` | Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-debuginfo` | Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-libs` | Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-sdb` | Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-utils` | Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind` | Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-chroot` | Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-debuginfo` | Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-devel` | Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-libbind-devel` | Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `caching-nameserver` | Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-chroot` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-debuginfo` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-devel` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-libbind-devel` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-libs` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-sdb` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `bind-utils` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |
| `caching-nameserver` | Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-4.P1.el5_4.1 |

Products: Isc Bind.

## How do I fix CVE-2009-4022?

Upgrade to a fixed version.

## Is CVE-2009-4022 being exploited?

There is no known exploitation of CVE-2009-4022 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-2009-4022 and fix it if it is affected.

What it is: CVE-2009-4022 is a low-severity vulnerability in Isc Bind, published on 25 Nov 2009. 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-2009-4022 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-2009-4022/ (Markdown: https://insights.sbomify.com/CVE-2009-4022/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-4022
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-4022
- OSV: https://osv.dev/vulnerability/CVE-2009-4022

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-4022/
Summaries are generated and may contain mistakes; the official description above is the record.