Description
A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| avahi | avahi | < 0.9-rc3 | 0.9-rc3 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
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 | avahi | No fix yet | — |
| Debian 13 | avahi | No fix yet | — |
| Debian 12 | avahi | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | avahi | No fix yet | — |
| Ubuntu 24.04 LTS | avahi | No fix yet | — |
| Ubuntu 22.04 LTS | avahi | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | avahi | No fix yet | — |
| Ubuntu Pro 18.04 LTS | avahi | No fix yet | — |
| Ubuntu Pro 16.04 LTS | avahi | No fix yet | — |
| Ubuntu Pro 14.04 LTS | avahi | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | avahi +9 | 0.9~rc2-1.el10_0.1 | RHSA-2025:16441 |
| RHEL 9 | avahi +12 | 0.8-22.el9_6.1 | RHSA-2025:11402 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | avahi +9 | 0.9~rc2-1.el10_0.1 | ALSA-2025:16441 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | avahi | 0.9~rc2-1.el10_0.1 | RLSA-2025:16441 |
| Rocky Linux 9 | avahi | 0.8-22.el9_6.1 | RLSA-2025:11402 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | avahi +1 | 0.8-150600.15.9.1 | SUSE-SU-2025:03333-1 |
| SLES 15 SP6 | avahi +1 | 0.8-150600.15.9.1 | SUSE-SU-2025:03333-1 |
| SLES 12 SP5 | avahi | 0.6.32-32.33.1 | SUSE-SU-2025:03332-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | avahi +1 | 0.8-160000.3.1 | SUSE-SU-2026:20027-1 |
| SLES 16.0 | avahi +1 | 0.8-160000.3.1 | SUSE-SU-2026:20027-1 |
| SLE Micro 6.2 | avahi | 0.8-160000.3.1 | SUSE-SU-2026:20070-1 |
| SLE Micro 6.1 | avahi | 0.8-slfo.1.1_4.1 | SUSE-SU-2026:20491-1 |
| SLE Micro 6.0 | avahi | 0.8-7.1 | SUSE-SU-2026:20525-1 |
| SLE Micro 5.5 | avahi | 0.8-150400.7.23.1 | SUSE-SU-2025:03331-1 |
| SLE Micro 5.4 | avahi | 0.8-150400.7.23.1 | SUSE-SU-2025:03331-1 |
| SLE Micro 5.3 | avahi | 0.8-150400.7.23.1 | SUSE-SU-2025:03331-1 |
| SLE Micro 5.2 | avahi | 0.7-150100.3.43.1 | SUSE-SU-2025:03266-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | avahi | 0.8-40.1 | openSUSE-SU-2025:15575-1 |
| openSUSE Leap 16.0 | avahi +2 | 0.8-160000.3.1 | openSUSE-SU-2026:20013-1 |
| openSUSE Leap 15.6 | avahi +2 | 0.8-150600.15.9.1 | SUSE-SU-2025:03333-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | avahi | 0.8-r21 | — |
| Alpine v3.23 | avahi | 0.8-r21 | — |
| Alpine v3.22 | avahi | 0.8-r21 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | avahi +15 | 0.8-14.amzn2023.0.14 | ALAS2023-2024-771 |
| Amazon Linux 2 | avahi +21 | 0.6.31-20.amzn2.0.7 | ALAS2-2024-2704 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | avahi | 0.8-9 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | avahi +9 | 0.9~rc2-1.el10_0.1 | ELSA-2025-16441 |
| Oracle Linux 9 | avahi +12 | 0.8-22.el9_6.1 | ELSA-2025-11402 |
Advisories 20
- ALSA-2025:16441 Moderate: avahi security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:16441 Red Hat Security Advisory: avahi security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2025:11402 Red Hat Security Advisory: avahi security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- openSUSE-SU-2026:20013-1 Security update for avahi SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15575-1 avahi-0.8-40.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20525-1 Security update for avahi SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20491-1 Security update for avahi SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20027-1 Security update for avahi SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20070-1 Security update for avahi SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2024-3474 avahi: Mehrere Schwachstellen ermöglichen Manipulation von Dateien BSI CERT-Bund (WID) · Mar 1, 2026
- SUSE-SU-2025:03332-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03266-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03331-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03333-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- RLSA-2025:16441 Moderate: avahi security update Rocky Linux Security Advisories · Oct 8, 2025
- RLSA-2025:11402 Moderate: avahi security update Rocky Linux Security Advisories · Oct 4, 2025
- ELSA-2025-16441 Moderate: avahi security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Sep 23, 2025
- ELSA-2025-11402 Moderate: avahi security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 21, 2025
- ALAS2-2024-2704 Moderate: avahi security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 19, 2024
- ALAS2023-2024-771 Moderate: avahi security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Dec 16, 2024
References
- RHSA-2025:11402 vendor-advisory
- RHSA-2025:16441 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2024-52615 vdb-entry
- RHBZ#2326418 issue-tracking
- https://github.com/avahi/avahi/pull/577