Symlink Attack Affecting lathiat/avahi package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-LATHIATAVAHI-2365875
  • published26 Jan 2022
  • disclosed17 Feb 2021
  • creditUnknown

Introduced: 17 Feb 2021

CVE-2021-26720  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for lathiat/avahi.

Overview

Affected versions of this package are vulnerable to Symlink Attack avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create arbitrary empty files via a symlink attack on files under /run/avahi-daemon. NOTE: this only affects the packaging for Debian GNU/Linux (used indirectly by SUSE), not the upstream Avahi product.

CVSS Scores

version 3.1