MediumFix available
avahi — security advisory
A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.
- Products
- avahi
- Affected versions
- Not specified
- Fixed versions
- 0.8-r1, 0.8-r3, 0.8-r4
- CVEs
- CVE-2021-3468
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:05 UTC · Revision 1
Source evidence
A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.
osv:ALPINE-CVE-2021-3468
avahi
Fixed versions: 0.8-r1
avahi
Fixed versions: 0.8-r1
avahi
Fixed versions: 0.8-r3
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
avahi
Fixed versions: 0.8-r4
Complete source record
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"severity": "medium",
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"aliases": [
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"metrics": [
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],
"package": {
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"ecosystem": "Alpine:v3.15"
},
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],
"package": {
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],
"package": {
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},
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],
"modified": "2026-10-23T17:17:56.194342290Z",
"provider": "osv",
"upstream": [
"CVE-2021-3468"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2021-3468"
]
},
"related_cves": [
{
"value": "CVE-2021-3468",
"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415470,
"published_at": "2021-06-02T16:15:08.96+00:00"
}