CVE-2017-6519
9.1
CRITICAL
CVSS 3.1
EPSS 1.3%
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.
How to fix CVE-2017-6519
To remediate CVE-2017-6519, upgrade the affected package to a fixed version below.
- —upgrade to 0.7-r2 or later
- —upgrade to 0.7-5 or later
Is CVE-2017-6519 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.7-r2
- from 0, < 0.7-5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |