Red Hat Security Advisory: avahi security update
Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers. Security Fix(es): * avahi: Avahi Wide-Area DNS Predictable Transaction IDs (CVE-2024-52616) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
CVE-2024-52616 is a vulnerability in Avahi's Wide-Area DNS implementation where transaction IDs are predictable, potentially weakening the security of DNS service discovery. Avahi facilitates zero-configuration networking by allowing devices to discover services on a local network without manual setup. Red Hat Product Security has rated this vulnerability as moderate and released security updates for Red Hat Enterprise Linux 9 and its extended update and life cycle support versions. The advisory references CWE-334 (Use of Predictable Security Parameters). No CVSS score is provided in the advisory. The vendor advisory confirms the availability of patches and provides instructions for applying updates.
Potential Impact
The vulnerability could allow an attacker to predict transaction IDs in Avahi's Wide-Area DNS queries, potentially undermining the integrity of DNS service discovery on affected systems. This may lead to spoofing or redirection of service discovery responses within local networks. However, no known exploits have been reported in the wild, and the overall security impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released security updates that address this vulnerability in Avahi for Red Hat Enterprise Linux 9 and its variants. Users should apply the available updates as described in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: avahi security update
Description
Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers. Security Fix(es): * avahi: Avahi Wide-Area DNS Predictable Transaction IDs (CVE-2024-52616) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2024-52616 is a vulnerability in Avahi's Wide-Area DNS implementation where transaction IDs are predictable, potentially weakening the security of DNS service discovery. Avahi facilitates zero-configuration networking by allowing devices to discover services on a local network without manual setup. Red Hat Product Security has rated this vulnerability as moderate and released security updates for Red Hat Enterprise Linux 9 and its extended update and life cycle support versions. The advisory references CWE-334 (Use of Predictable Security Parameters). No CVSS score is provided in the advisory. The vendor advisory confirms the availability of patches and provides instructions for applying updates.
Potential Impact
The vulnerability could allow an attacker to predict transaction IDs in Avahi's Wide-Area DNS queries, potentially undermining the integrity of DNS service discovery on affected systems. This may lead to spoofing or redirection of service discovery responses within local networks. However, no known exploits have been reported in the wild, and the overall security impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released security updates that address this vulnerability in Avahi for Red Hat Enterprise Linux 9 and its variants. Users should apply the available updates as described in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:7437
- Cve Count
- 1
Threat ID: 6a3da1d34853345fc1826200
Added to database: 06/25/2026, 21:46:59 UTC
Last enriched: 06/25/2026, 22:12:20 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 14
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