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Ubuntu: (Multiple Advisories) (CVE-2017-6519): Avahi vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2017-6519): Avahi vulnerabilities

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
04/30/2017
Created
03/19/2019
Added
02/05/2019
Modified
03/02/2020

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.

Solution(s)

  • ubuntu-upgrade-avahi-daemon
  • ubuntu-upgrade-libavahi-core7

References

  • USN-3876-1
  • USN-3876-2
  • CVE-2017-6519

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