UnratedFix available
avahi: Fix of 8 CVEs
Type: advisorySources: OSV
- CVE-2021-3468: handle termination event on avahi Unix socket to prevent infinite loop - CVE-2023-1981: prevent avahi daemon crash by emitting an error if the requested D-Bus service is not found - CVE-2021-3502: fix avahi-daemon crashing from NULL pointer assertions - CVE-2023-38469: reject overly long TXT resource records to prevent reachable assertion in avahi_dns_packet_append_record - CVE-2023-38470: ensure each label is at least one byte long in avahi_normalize_name() to prevent reachable assertion in avahi_escape_label() - CVE-2023-38471: fix creating invalid escape sequence in dbus_set_host_name function - CVE-2023-38472: ensure avahi_rdata_parse() has valid rdata before parsing to prevent reachable assertion - CVE-2023-38473: normalize input in avahi_alternative_host_name() to prevent reachable assertion due to unescaped dot handling
- Products
- avahi, avahi-autoipd, avahi-compat-howl, avahi-compat-howl-devel, avahi-compat-libdns_sd, avahi-compat-libdns_sd-devel, avahi-devel, avahi-dnsconfd, avahi-glib, avahi-glib-devel, avahi-gobject, avahi-gobject-devel, avahi-libs, avahi-tools, avahi-ui, avahi-ui-devel, avahi-ui-gtk3, avahi-ui-tools
- Affected versions
- Not specified
- Fixed versions
- 0.8-12.el9_2.1.tuxcare.els1
- CVEs
- CVE-2021-3468, CVE-2021-3502, CVE-2023-1981, CVE-2023-38469, CVE-2023-38470, CVE-2023-38471, CVE-2023-38472, CVE-2023-38473
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 13:48 UTC · Revision 1
Source evidence
- CVE-2021-3468: handle termination event on avahi Unix socket to prevent infinite loop - CVE-2023-1981: prevent avahi daemon crash by emitting an error if the requested D-Bus service is not found - CVE-2021-3502: fix avahi-daemon crashing from NULL pointer assertions - CVE-2023-38469: reject overly long TXT resource records to prevent reachable assertion in avahi_dns_packet_append_record - CVE-2023-38470: ensure each label is at least one byte long in avahi_normalize_name() to prevent reachable assertion in avahi_escape_label() - CVE-2023-38471: fix creating invalid escape sequence in dbus_set_host_name function - CVE-2023-38472: ensure avahi_rdata_parse() has valid rdata before parsing to prevent reachable assertion - CVE-2023-38473: normalize input in avahi_alternative_host_name() to prevent reachable assertion due to unescaped dot handling
osv:CLSA-2025-1743675732
avahi
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-autoipd
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-compat-howl
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-compat-howl-devel
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-compat-libdns_sd
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-compat-libdns_sd-devel
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-devel
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-dnsconfd
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-glib
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-glib-devel
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-gobject
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-gobject-devel
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-libs
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-tools
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-ui
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-ui-devel
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-ui-gtk3
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
avahi-ui-tools
Fixed versions: 0.8-12.el9_2.1.tuxcare.els1
Complete source record
{
"id": "182e7cbf72579494a6df7b8a2c281536a20d781ebc5c54cd5eecb6f0f164f625",
"url": "https://osv.dev/vulnerability/CLSA-2025-1743675732",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "avahi: Fix of 8 CVEs",
"summary": "- CVE-2021-3468: handle termination event on avahi Unix socket to prevent infinite loop - CVE-2023-1981: prevent avahi daemon crash by emitting an error if the requested D-Bus service is not found - CVE-2021-3502: fix avahi-daemon crashing from NULL pointer assertions - CVE-2023-38469: reject overly long TXT resource records to prevent reachable assertion in avahi_dns_packet_append_record - CVE-2023-38470: ensure each label is at least one byte long in avahi_normalize_name() to prevent reachable assertion in avahi_escape_label() - CVE-2023-38471: fix creating invalid escape sequence in dbus_set_host_name function - CVE-2023-38472: ensure avahi_rdata_parse() has valid rdata before parsing to prevent reachable assertion - CVE-2023-38473: normalize input in avahi_alternative_host_name() to prevent reachable assertion due to unescaped dot handling",
"evidence": "osv:CLSA-2025-1743675732",
"products": [
{
"name": {
"value": "avahi",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-autoipd",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-compat-howl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-compat-howl-devel",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-compat-libdns_sd",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-compat-libdns_sd-devel",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-devel",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-dnsconfd",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-glib",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-glib-devel",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-gobject",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-gobject-devel",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-libs",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-tools",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-ui",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-ui-devel",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-ui-gtk3",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "avahi-ui-tools",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.8-12.el9_2.1.tuxcare.els1",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2025-1743675732",
"aliases": [
"CLSA-2025-1743675732"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi",
"purl": "pkg:rpm/tuxcare/avahi?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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},
{
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}
]
}
],
"package": {
"name": "avahi-autoipd",
"purl": "pkg:rpm/tuxcare/avahi-autoipd?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-compat-howl",
"purl": "pkg:rpm/tuxcare/avahi-compat-howl?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-compat-howl-devel",
"purl": "pkg:rpm/tuxcare/avahi-compat-howl-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-compat-libdns_sd",
"purl": "pkg:rpm/tuxcare/avahi-compat-libdns_sd?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "avahi-compat-libdns_sd-devel",
"purl": "pkg:rpm/tuxcare/avahi-compat-libdns_sd-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "avahi-devel",
"purl": "pkg:rpm/tuxcare/avahi-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-dnsconfd",
"purl": "pkg:rpm/tuxcare/avahi-dnsconfd?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-glib",
"purl": "pkg:rpm/tuxcare/avahi-glib?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-glib-devel",
"purl": "pkg:rpm/tuxcare/avahi-glib-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-gobject",
"purl": "pkg:rpm/tuxcare/avahi-gobject?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "avahi-gobject-devel",
"purl": "pkg:rpm/tuxcare/avahi-gobject-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-libs",
"purl": "pkg:rpm/tuxcare/avahi-libs?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "avahi-tools",
"purl": "pkg:rpm/tuxcare/avahi-tools?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-ui",
"purl": "pkg:rpm/tuxcare/avahi-ui?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-ui-devel",
"purl": "pkg:rpm/tuxcare/avahi-ui-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-ui-gtk3",
"purl": "pkg:rpm/tuxcare/avahi-ui-gtk3?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8-12.el9_2.1.tuxcare.els1"
}
]
}
],
"package": {
"name": "avahi-ui-tools",
"purl": "pkg:rpm/tuxcare/avahi-ui-tools?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2025-1743675732.json"
}
}
],
"modified": "2026-10-21T10:45:08.537312853Z",
"provider": "osv",
"upstream": [
"CVE-2021-3468",
"CVE-2021-3502",
"CVE-2023-1981",
"CVE-2023-38469",
"CVE-2023-38470",
"CVE-2023-38471",
"CVE-2023-38472",
"CVE-2023-38473"
],
"references": [
"https://errata.tuxcare.com/almalinux9.2-esu/CLSA-2025-1743675732.html"
]
},
"related_cves": [
{
"value": "CVE-2021-3468",
"evidence": "/upstream"
},
{
"value": "CVE-2021-3502",
"evidence": "/upstream"
},
{
"value": "CVE-2023-1981",
"evidence": "/upstream"
},
{
"value": "CVE-2023-38469",
"evidence": "/upstream"
},
{
"value": "CVE-2023-38470",
"evidence": "/upstream"
},
{
"value": "CVE-2023-38471",
"evidence": "/upstream"
},
{
"value": "CVE-2023-38472",
"evidence": "/upstream"
},
{
"value": "CVE-2023-38473",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 392116,
"published_at": "2025-04-03T10:22:18+00:00"
}