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CVE-2017-6519

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2020-1176-01
Posted Apr 1, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1176-01 - Avahi is an implementation of the DNS Service Discovery and Multicast DNS specifications for Zero Configuration Networking. It facilitates service discovery on a local network. Avahi and Avahi-aware applications allow you to plug your computer into a network and, with no configuration, view other people to chat with, view printers to print with, and find shared files on other computers.

tags | advisory, local
systems | linux, redhat
advisories | CVE-2017-6519
SHA-256 | aa642162e6946e2b09a47c39ba4a6fcd062ab04753d6721a40fc8da50a46cb7e
Ubuntu Security Notice USN-3876-2
Posted Jan 31, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3876-2 - USN-3876-1 fixed a vulnerability in Avahi. This update provides the corresponding update for Ubuntu 12.04 ESM. Chad Seaman discovered that Avahi incorrectly handled certain messages. An attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2017-6519
SHA-256 | 534ed3e8821dc2c6659ee366ead6ba94eac2668ade728ba640d133a073ca6ca5
Ubuntu Security Notice USN-3876-1
Posted Jan 31, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3876-1 - Chad Seaman discovered that Avahi incorrectly handled certain messages. An attacker could possibly use this issue to cause a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2017-6519
SHA-256 | ecd33e9fdc0496684eebe6cc33ebb1d0db04916edfc7e746fe047c4f2255c5fc
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