CVE-2017-6519 | BDVDB-2026-85013 Detail
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact high. Attack vector: network.
Weaknesses#
- CWE-346 Origin Validation Error
References#
- https://github.com/lathiat/avahi/issues/203#issuecomment-449536790
- https://usn.ubuntu.com/3876-1/
- https://github.com/lathiat/avahi/issues/203
- https://bugzilla.redhat.com/show_bug.cgi?id=1426712
- https://usn.ubuntu.com/3876-2/
- https://www.secfu.net/advisories
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.