1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200901-11 / avahi |
| Release Date | January 14, 2009 |
| Latest Revision | January 14, 2009: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| net-dns/avahi | < 0.6.24 | >= 0.6.24 | All supported architectures |
Related bugreports: #250913
A Denial of Service vulnerability has been discovered in Avahi.
Avahi is a system that facilitates service discovery on a local network.
Hugo Dias reported a failed assertion in the originates_from_local_legacy_unicast_socket() function in avahi-core/server.c when processing mDNS packets with a source port of 0.
A remote attacker could send specially crafted packets to the daemon, leading to its crash.
There is no known workaround at this time.
All Avahi users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/avahi-0.6.24" |