The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol     suite. In versions up to and including 0.9-rc2, the simple protocol server ignores the documented client     limit and accepts unlimited connections, allowing for easy local DoS. Although `CLIENTS_MAX` is defined,     `server_work()` unconditionally `accept()`s and `client_new()` always appends the new client and     increments `n_clients`. There is no check against the limit. When client cannot be accepted as a result of     maximal socket number of avahi-daemon, it logs unconditionally error per each connection. Unprivileged     local users can exhaust daemon memory and file descriptors, causing a denial of service system-wide for     mDNS/DNS-SD. Exhausting local file descriptors causes increased system load caused by logging errors of     each of request. Overloading prevents glibc calls using nss-mdns plugins to resolve `*.local.` names and     link-local addresses. As of time of publication, no known patched versions are available, but a candidate     fix is available in pull request 808, and some workarounds are available. Simple clients are offered for     nss-mdns package functionality. It is not possible to disable the unix socket `/run/avahi-daemon/socket`,     but resolution requests received via DBus are not affected directly. Tools avahi-resolve, avahi-resolve-     address and avahi-resolve-host-name are not affected, they use DBus interface. It is possible to change     permissions of unix socket after avahi-daemon is started. But avahi-daemon does not provide any     configuration for it. Additional access restrictions like SELinux can also prevent unwanted tools to     access the socket and keep resolution working for trusted users. (CVE-2025-59529)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2025-59529

medium Nessus Plugin ID 279387

Version 1.6