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Origin Validation Error Affecting avahi-libs package, versions <0:0.6.31-20.amzn2

Severity

 Recommended
low

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
2.09% (89th percentile)

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  • Snyk IDSNYK-AMZN2-AVAHILIBS-1685960
  • published27 Sept 2021
  • disclosed1 May 2017
Report a new vulnerability Found a mistake?

Introduced: 1 May 2017

CVE-2017-6519  (opens in a new tab)
CWE-346  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 avahi-libs to version 0:0.6.31-20.amzn2 or higher.
This issue was patched in ALAS2-2020-1502.

NVD Description

Note: Versions mentioned in the description apply only to the upstream avahi-libs package and not the avahi-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.