NULL Pointer Dereference Affecting avahi package, versions <0.8-5ubuntu4
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Test your applications- Snyk ID SNYK-UBUNTU2204-AVAHI-2781176
- published 16 Apr 2021
- disclosed 7 May 2021
How to fix?
Upgrade Ubuntu:22.04 avahi to version 0.8-5ubuntu4 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:22.04 relevant fixed versions and status.
A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest threat from this vulnerability is to the service availability.