CVE-2017-6519

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 (traffic amplification) and may cause information leakage by obtaining potentially sensitive information from the responding device via port-5353 UDP packets. NOTE: this may overlap CVE-2015-2809.

• CWE-346
• CWE-346

• https://bugzilla.redhat.com/show_bug.cgi?id=1426712Issue Tracking, Patch, Third Party Advisory
• https://github.com/lathiat/avahi/issues/203Exploit, Third Party Advisory
• https://github.com/lathiat/avahi/issues/203#issuecomment-449536790Third Party Advisory
• https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
• https://usn.ubuntu.com/3876-1/Third Party Advisory
• https://usn.ubuntu.com/3876-2/Third Party Advisory
• https://www.secfu.net/advisoriesThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1426712Issue Tracking, Patch, Third Party Advisory
• https://github.com/lathiat/avahi/issues/203Exploit, Third Party Advisory
• https://github.com/lathiat/avahi/issues/203#issuecomment-449536790Third Party Advisory
• https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
• https://usn.ubuntu.com/3876-1/Third Party Advisory
• https://usn.ubuntu.com/3876-2/Third Party Advisory
• https://www.secfu.net/advisoriesThird Party Advisory

Published

May 1, 2017

Last Modified

Jun 17, 2026

Status

Modified

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