# CVE-2023-49441: dnsmasq: dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.

CVE-2023-49441 is fixed in 4 products on 1 platform, first by dnsmasq 2.90-0ubuntu0.20.04.1, released June 6, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-49441
- Priority: High
- CVSS: 7.5 (Low)
- EPSS: 0.0066
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 6, 2024

## Description

dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dnsmasq Debian 12.15 (bookworm) | 2.90-1 | [DEBIAN-CVE-2023-49441](https://patchblox.com/security/data/fix/linux/debian-cve-2023-49441.md) | Jun 6, 2024 |
| Linux | dnsmasq Debian 13.5 (trixie) | 2.90-1 | [DEBIAN-CVE-2023-49441](https://patchblox.com/security/data/fix/linux/debian-cve-2023-49441.md) | Jun 6, 2024 |
| Linux | dnsmasq Debian 14 | 2.90-1 | [DEBIAN-CVE-2023-49441](https://patchblox.com/security/data/fix/linux/debian-cve-2023-49441.md) | Jun 6, 2024 |
| Linux | dnsmasq Ubuntu 18.04.6 LTS (bionic) | 2.90-0ubuntu0.18.04.1+esm1 | [dnsmasq 2.90-0ubuntu0.18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-2.90-0ubuntu0.18.04.1-esm1.md) | Jan 16, 2026 |
| Linux | dnsmasq Ubuntu 20.04 LTS (focal) | 2.90-0ubuntu0.20.04.1 | [dnsmasq 2.90-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-2.90-0ubuntu0.20.04.1.md) | Jun 6, 2024 |
| Linux | dnsmasq Ubuntu 22.04.1 LTS (jammy) | 2.90-0ubuntu0.22.04.1 | [dnsmasq 2.90-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-2.90-0ubuntu0.22.04.1.md) | Jan 16, 2026 |
| Linux | dnsmasq-base Ubuntu 18.04.6 LTS (bionic) | 2.90-0ubuntu0.18.04.1+esm1 | [dnsmasq-base 2.90-0ubuntu0.18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-base-2.90-0ubuntu0.18.04.1-esm1.md) | Jan 16, 2026 |
| Linux | dnsmasq-base Ubuntu 20.04 LTS (focal) | 2.90-0ubuntu0.20.04.1 | [dnsmasq-base 2.90-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-base-2.90-0ubuntu0.20.04.1.md) | Jun 6, 2024 |
| Linux | dnsmasq-base Ubuntu 22.04.1 LTS (jammy) | 2.90-0ubuntu0.22.04.1 | [dnsmasq-base 2.90-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-base-2.90-0ubuntu0.22.04.1.md) | Jan 16, 2026 |
| Linux | dnsmasq-base-lua Ubuntu 18.04.6 LTS (bionic) | 2.90-0ubuntu0.18.04.1+esm1 | [dnsmasq-base-lua 2.90-0ubuntu0.18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-base-lua-2.90-0ubuntu0.18.04.1-esm1.md) | Jan 16, 2026 |
| Linux | dnsmasq-base-lua Ubuntu 20.04 LTS (focal) | 2.90-0ubuntu0.20.04.1 | [dnsmasq-base-lua 2.90-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-base-lua-2.90-0ubuntu0.20.04.1.md) | Jun 6, 2024 |
| Linux | dnsmasq-base-lua Ubuntu 22.04.1 LTS (jammy) | 2.90-0ubuntu0.22.04.1 | [dnsmasq-base-lua 2.90-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-base-lua-2.90-0ubuntu0.22.04.1.md) | Jan 16, 2026 |
| Linux | dnsmasq-utils Ubuntu 18.04.6 LTS (bionic) | 2.90-0ubuntu0.18.04.1+esm1 | [dnsmasq-utils 2.90-0ubuntu0.18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dnsmasq-utils-2.90-0ubuntu0.18.04.1-esm1.md) | Jan 16, 2026 |
| Linux | dnsmasq-utils Ubuntu 20.04 LTS (focal) | 2.90-0ubuntu0.20.04.1 | [dnsmasq-utils 2.90-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-dnsmasq-utils-2.90-0ubuntu0.20.04.1.md) | Jun 6, 2024 |
| Linux | dnsmasq-utils Ubuntu 22.04.1 LTS (jammy) | 2.90-0ubuntu0.22.04.1 | [dnsmasq-utils 2.90-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dnsmasq-utils-2.90-0ubuntu0.22.04.1.md) | Jan 16, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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