ALSA-2023:7836

Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers.

Security Fix(es):

• avahi: Local DoS by event-busy-loop from writing long lines to /run/avahi-daemon/socket (CVE-2021-3468)
• avahi: Reachable assertion in avahidnspacketappendrecord (CVE-2023-38469)
• avahi: Reachable assertion in avahiescapelabel (CVE-2023-38470)
• avahi: Reachable assertion in dbussethost_name (CVE-2023-38471)
• avahi: Reachable assertion in avahirdataparse (CVE-2023-38472)
• avahi: Reachable assertion in avahialternativehost_name (CVE-2023-38473)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.