CVE-2021-3502

Published: May 7, 2021Modified: Nov 21, 2024

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

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.

Affected (1)

Products: Avahi: Avahi

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Avahi Avahi	Version 0.8-5

Related CWEs

Reachable Assertion

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

References (4)

https://bugzilla.redhat.com/show_bug.cgi?id=1946914

Source: secalert@redhat.com

ExploitIssue TrackingPatchThird Party Advisory

https://github.com/lathiat/avahi/issues/338

Source: secalert@redhat.com

ExploitThird Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1946914

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitIssue TrackingPatchThird Party Advisory

https://github.com/lathiat/avahi/issues/338

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.