Reachable Assertion Affecting avahi-glib package, versions <0:0.8-15.el9


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-RHEL9-AVAHIGLIB-7877247
  • published3 Sept 2024
  • disclosed29 Mar 2021

Introduced: 29 Mar 2021

CVE-2021-3502  (opens in a new tab)
CWE-617  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:9 avahi-glib to version 0:0.8-15.el9 or higher.
This issue was patched in RHSA-2023:6707.

NVD Description

Note: Versions mentioned in the description apply only to the upstream avahi-glib package and not the avahi-glib package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest threat from this vulnerability is to the service availability.

CVSS Scores

version 3.1