Description
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_escape_label() function.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| avahi | avahi | < 0.9-rc1 | 0.9-rc1 |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Fedora | Fedora | — | — |
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 | 0.8-14 | — |
| Debian 13 | avahi | 0.8-14 | — |
| Debian 12 | avahi | 0.8-10+deb12u1 | — |
| Debian 11 | avahi | 0.8-5+deb11u3 | DLA-3990-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | avahi | 0.8-5ubuntu5.2 | USN-6487-1 |
| Ubuntu 20.04 LTS | avahi | 0.7-4ubuntu7.3 | USN-6487-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | avahi | 0.7-3.1ubuntu1.3+esm2 | USN-6487-1 |
| Ubuntu Pro 16.04 LTS | avahi | 0.6.32~rc+dfsg-1ubuntu2.3+esm3 | USN-6487-1 |
| Ubuntu Pro 14.04 LTS | avahi | 0.6.31-4ubuntu1.3+esm3 | USN-6487-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | avahi +9 | 0.8-20.el9 | RHSA-2024:2433 |
| RHEL 8 | avahi +16 | 0.7-21.el8_9.1 | RHSA-2023:7836 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.8 EUS | avahi +15 | 0.7-20.el8_8.4 | RHSA-2024:0576 |
| RHEL 8.6 EUS | avahi +15 | 0.7-20.el8_6.3 | RHSA-2024:0418 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | avahi +9 | 0.8-20.el9 | ALSA-2024:2433 |
| AlmaLinux 8 | avahi +16 | 0.7-21.el8_9.1 | ALSA-2023:7836 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | avahi | 0.7-21.el8_9.1 | RLSA-2023:7836 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | avahi +1 | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| SLES 15 SP4 | avahi +1 | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| SLES 12 SP5 | avahi +1 | 0.6.32-32.27.1 | SUSE-SU-2024:1500-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | avahi +1 | 0.6.32-32.27.1 | SUSE-SU-2024:1500-1 |
| SLE Micro 5.5 | avahi | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| SLE Micro 5.4 | avahi | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| SLE Micro 5.3 | avahi | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| SLE Micro 5.2 | avahi | 0.7-150100.3.29.1 | SUSE-SU-2023:4910-1 |
| SUSE Manager Server 4.2 | avahi +1 | 0.7-150100.3.29.1 | SUSE-SU-2023:4910-1 |
| SUSE Manager Proxy 4.2 | avahi +1 | 0.7-150100.3.29.1 | SUSE-SU-2023:4910-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | avahi | 0.8-27.1 | openSUSE-SU-2024:13393-1 |
| openSUSE Leap 15.5 | avahi +2 | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| openSUSE Leap 15.4 | avahi +1 | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| openSUSE Leap 15.4 | avahi-glib2 | 0.7-150100.3.29.1 | SUSE-SU-2023:4910-1, SUSE-SU-2023:4503-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | avahi | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
| openSUSE Leap Micro 5.3 | avahi | 0.8-150400.7.10.1 | SUSE-SU-2023:4503-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | avahi | 0.8-r16 | — |
| Alpine v3.23 | avahi | 0.8-r16 | — |
| Alpine v3.22 | avahi | 0.8-r16 | — |
| Alpine v3.21 | avahi | 0.8-r16 | — |
| Alpine v3.20 | avahi | 0.8-r16 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | avahi | 0.8-r16 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | avahi +15 | 0.8-14.amzn2023.0.8 | ALAS2023-2023-272 |
| Amazon Linux 2 | avahi +21 | 0.6.31-20.amzn2.0.2 | ALAS2-2023-2175 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | avahi | 0.8-4 | — |
| Azure Linux 2 (CBL-Mariner) | avahi | 0.8-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | avahi +9 | 0.8-20.el9 | ELSA-2024-2433 |
| Oracle Linux 8 | avahi +16 | 0.7-21.el8_9.1 | ELSA-2023-7836 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | avahi +1 | 0.9_rc1-r0 | — |
Advisories 19
- ALSA-2024:2433 Moderate: avahi security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:7836 Moderate: avahi security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:2433 Red Hat Security Advisory: avahi security update Red Hat Security Advisories (RHSA) · Sep 14, 2026
- RHSA-2024:0576 Red Hat Security Advisory: avahi security update Red Hat Security Advisories (RHSA) · Sep 14, 2026
- RHSA-2024:0418 Red Hat Security Advisory: avahi security update Red Hat Security Advisories (RHSA) · Sep 14, 2026
- RHSA-2023:7836 Red Hat Security Advisory: avahi security update Red Hat Security Advisories (RHSA) · Sep 14, 2026
- USN-6487-1 avahi vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- WID-SEC-2024-1226 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- DLA-3990-1 avahi - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:7836 Moderate: avahi security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:1500-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13393-1 avahi-0.8-27.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4503-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4910-1 Security update for avahi SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2023 avahi: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 4, 2025
- ELSA-2024-2433 Moderate: avahi security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 3, 2024
- ELSA-2023-7836 Moderate: avahi security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Dec 15, 2023
- ALAS2023-2023-272 Moderate: avahi security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Aug 9, 2023
- ALAS2-2023-2175 Moderate: avahi security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 8, 2023
References
- https://access.redhat.com/security/cve/CVE-2023-38470 vdb-entry
- RHBZ#2191690 issue-tracking