Reachable Assertion Affecting avahi package, versions <0.7-4ubuntu7.3+esm2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-UBUNTU2004-AVAHI-15963265
  • published22 Apr 2026
  • disclosed3 Apr 2026

Introduced: 3 Apr 2026

CVE-2026-34933  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 avahi to version 0.7-4ubuntu7.3+esm2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream avahi package and not the avahi package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.

CVSS Base Scores

version 3.1