Description
dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dnsmasq | 2.90-1 | — |
| Debian 13 | dnsmasq | 2.90-1 | — |
| Debian 12 | dnsmasq | 2.90-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | dnsmasq | 2.90-0ubuntu0.22.04.1 | — |
| Ubuntu 20.04 LTS | dnsmasq | 2.90-0ubuntu0.20.04.1 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | dnsmasq | 2.90-0ubuntu0.18.04.1+esm1 | — |
| Ubuntu Pro 16.04 LTS | dnsmasq | 2.90-0ubuntu0.16.04.1+esm1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | dnsmasq | 2.90-2.1 | openSUSE-SU-2024:14031-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | dnsmasq +1 | 2.76-16.amzn2.1.5 | ALAS2-2024-2580 |
Advisories 6
- openSUSE-SU-2024:14031-1 dnsmasq-2.90-2.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ICSA-24-319-06 Siemens SCALANCE M-800 Family CISA ICS & IT advisories · May 6, 2025
- NCSC-2024-0433 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Nov 12, 2024
- SSA-354112 SSA-354112: Multiple Vulnerabilities in SCALANCE M-800 Family Before V8.2 Siemens ProductCERT · Nov 12, 2024
- WID-SEC-2024-1317 dnsmasq: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jun 24, 2024
- ALAS2-2024-2580 Moderate: dnsmasq security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 24, 2024