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ALPINE-CVE-2021-3468

ALPINE-CVE-2021-3468 PUBLISHED CVSS 5.5 MEDIUM

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.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.12avahi0.6.31-r6, 0, 0.6.28-r0
Alpine:v3.11avahi0.6.28-r1, 0.6, 0.7-r5
Alpine:v3.19avahi0.6.31-r5, 0.6, 0.8-r3
Alpine:v3.14avahi0.6.30-r1, 0.6.31-r0, 0.6.31-r1
Alpine:v3.20avahi0.6.32-r2, 0.6.31-r7, 0
Alpine:v3.13avahi0.6.28-r1, 0.6.28-r2, 0.6.29-r0
Alpine:v3.18avahi0.6.32-r1, 0.8-r3, 0.6.30-r3
Alpine:v3.21avahi0.8-r2, 0.6.31-r3, 0.6.31-r2
Alpine:v3.15avahi0.7-r1, 0.6, 0.8-r3
Alpine:v3.22avahi0.7-r0, 0.6.28-r1, 0.6.28-r2
Alpine:v3.24avahi0.6
Alpine:v3.17avahi0.8-r0, 0.6.30-r2, 0.6.28-r1
Alpine:v3.23avahi0.6.31-r3, 0.6.31-r1, 0.6.31-r2
Alpine:v3.16avahi0.8-r0, 0.6.31-r1, 0.6.31-r0

Timeline

  • Jun 2, 2021 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jul 8, 2026 CVE Updated
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