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Fencer Vulns
medium 5.3

CVE-2024-52616 json

Avahi: avahi wide-area dns predictable transaction ids

published 2024-11-21 23 mo ago modified 2026-11-05 4 d ago also EUVD-2024-46029

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. This predictable behavior facilitates DNS spoofing attacks, allowing attackers to guess transaction IDs.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 9 0:0.8-22.el9_6
  • avahi Debian 14 0.8-18

debian advisories DEBIAN-CVE-2024-52616

  • avahi RHEL 9 0.8-22.el9_6
  • avahi-glib RHEL 9 0.8-22.el9_6
  • avahi-libs RHEL 9 0.8-22.el9_6
  • avahi-tools RHEL 9 0.8-22.el9_6
  • avahi-autoipd RHEL 9 0.8-22.el9_6
  • avahi-gobject RHEL 9 0.8-22.el9_6
  • avahi-compat-howl RHEL 9 0.8-22.el9_6
  • avahi-compat-libdns_sd RHEL 9 0.8-22.el9_6

red hat advisories RHSA-2025:7437

  • avahi Linux Micro 6.1 0.8-slfo.1.1_2.1
  • avahi Linux Micro 6.0 0.8-6.1
  • avahi SLE Module for Package Hub 15 SP5, SLE Module for Desktop Applications 15 SP5, SLE Module for Basesystem 15 SP5 +5 more 0.8-150400.7.20.1
  • avahi-qt5 openSUSE Leap 15.5 0.8-150400.7.20.1
  • avahi-glib2 SLE Module for Desktop Applications 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 0.8-150400.7.20.1
  • avahi SLE Micro 5.2 0.7-150100.3.40.1
  • avahi SLE Module for Package Hub 15 SP6, SLE Module for Desktop Applications 15 SP6, SLE Module for Basesystem 15 SP6 +1 more 0.8-150600.15.6.1
  • avahi-qt5 openSUSE Leap 15.6 0.8-150600.15.6.1

suse advisories SUSE-SU-2025:20308-1SUSE-SU-2025:20103-1SUSE-SU-2024:4386-1SUSE-SU-2024:4282-1SUSE-SU-2024:4225-1SUSE-SU-2024:4196-1

  • avahi openSUSE Tumbleweed 0.8-37.1

opensuse advisories openSUSE-SU-2024:14538-1

  • avahi AlmaLinux 9 0.8-22.el9_6
  • avahi-glib AlmaLinux 9 0.8-22.el9_6
  • avahi-libs AlmaLinux 9 0.8-22.el9_6
  • avahi-tools AlmaLinux 9 0.8-22.el9_6
  • avahi-autoipd AlmaLinux 9 0.8-22.el9_6
  • avahi-gobject AlmaLinux 9 0.8-22.el9_6
  • avahi-compat-howl AlmaLinux 9 0.8-22.el9_6
  • avahi-compat-libdns_sd AlmaLinux 9 0.8-22.el9_6

almalinux advisories ALSA-2025:7437

  • avahi Rocky Linux 9 0.8-22.el9_6

rocky linux advisories RLSA-2025:7437

  • avahi Alpine 3.24, Alpine 3.23, Alpine 3.22 0.8-r21

alpine advisories ALPINE-CVE-2024-52616

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • avahi Azure Linux 3.0 0.8-5
  • avahi CBL-Mariner 2.0 0.8-4

azure linux advisories AZL-53579AZL-53756

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-52616 updated cvss 5.3

avahi: Avahi Wide-Area DNS Predictable Transaction IDs

  • Red Hat Enterprise Linux 7 avahi, avahi-ui, avahi-qt3, avahi-qt4, avahi-glib, avahi-libs, +8 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 avahi, avahi-ui, avahi-glib, avahi-libs, avahi-tools, avahi-autoipd, +5 more
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-9
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux AppStream (v. 9) avahi-glib 0.8-22.el9_6, avahi-tools 0.8-22.el9_6, avahi-autoipd 0.8-22.el9_6 Red Hat Enterprise Linux BaseOS (v. 9) avahi 0.8-22.el9_6, avahi-libs 0.8-22.el9_6 Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) avahi-gobject 0.8-22.el9_6, avahi-compat-howl 0.8-22.el9_6, avahi-compat-libdns_sd 0.8-22.el9_6
    fixed: vendor fix RHSA-2025:7437

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • 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

Classification

Weakness
  • CWE-334 Small Space of Random Values

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.