#VU17349 Input validation error in Avahi - CVE-2017-6519

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Main Vulnerability Database Vulnerabilities #VU17349

#VU17349 Input validation error in Avahi - CVE-2017-6519

Published: February 1, 2019


Vulnerability identifier: #VU17349
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-6519
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Avahi
Software vendor:
avahi.org

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to avahi-daemon inadvertently responds to IPv6 unicast queries with source addresses that are not on-link. A remote attacker can submit specially crafted port-5353 UDP packet to trigger traffic amplification and cause the service to crash.


Remediation

Install update from vendor's website.

External links