Avahi: avahi wide-area dns uses constant source port

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Summary

CVECVE-2024-52615
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-11-21 21:15:23 UTC
Updated2026-06-29 23:16:41 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.005740000 probability, percentile 0.431170000 (date 2026-07-01)

Problem Types: CWE-330 | CWE-330 Use of Insufficiently Random Values

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 10 unaffected 0:0.9~rc2-1.el10_0.1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:0.8-22.el9_6.1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:0.8-22.el9_6.1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat OpenShift Container Platform 4 Not specified Not specified

References

ReferenceSourceLinkTags
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/errata/RHSA-2025:11402 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:16441 [email protected] access.redhat.com
access.redhat.com/security/cve/CVE-2024-52615 [email protected] access.redhat.com
github.com/avahi/avahi/pull/577 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2024-11-15T08:39:36.023ZReported to Red Hat.
CNA2024-11-15T00:00:00.000ZMade public.
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