Avahi
Monthly
Denial of service in Avahi prior to version 0.9-rc4 allows local unprivileged users to crash avahi-daemon by sending a D-Bus method call with conflicting publish flags. The vulnerability requires local access and low privileges but causes immediate service unavailability. No public exploit code or active exploitation has been confirmed; however, the attack is trivial to execute given the low complexity barrier.
Avahi daemon versions 0.9rc2 and below can be remotely crashed through a denial of service attack by sending a specially crafted mDNS response with a recursive CNAME record pointing to itself, triggering unbounded recursion and stack exhaustion. This vulnerability affects systems using multicast record browsers, including those relying on nss-mdns for service discovery. A patch is available for affected installations.
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart. [CVSS 6.5 MEDIUM]
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. [CVSS 6.5 MEDIUM]
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus. [CVSS 5.5 MEDIUM]
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi, where a reachable assertion exists in avahi_dns_packet_append_record. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in the avahi library. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in avahi in versions 0.6 up to 0.8. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A flaw was found in avahi 0.8-5. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Denial of service in Avahi prior to version 0.9-rc4 allows local unprivileged users to crash avahi-daemon by sending a D-Bus method call with conflicting publish flags. The vulnerability requires local access and low privileges but causes immediate service unavailability. No public exploit code or active exploitation has been confirmed; however, the attack is trivial to execute given the low complexity barrier.
Avahi daemon versions 0.9rc2 and below can be remotely crashed through a denial of service attack by sending a specially crafted mDNS response with a recursive CNAME record pointing to itself, triggering unbounded recursion and stack exhaustion. This vulnerability affects systems using multicast record browsers, including those relying on nss-mdns for service discovery. A patch is available for affected installations.
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart. [CVSS 6.5 MEDIUM]
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. [CVSS 6.5 MEDIUM]
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus. [CVSS 5.5 MEDIUM]
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in Avahi, where a reachable assertion exists in avahi_dns_packet_append_record. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A vulnerability was found in the avahi library. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
A flaw was found in avahi in versions 0.6 up to 0.8. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
A flaw was found in avahi 0.8-5. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.