CVE Vulnerability

CVE-2021-3502

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.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/lathiat/avahi/issues/338 Exploit Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1946914 Exploit Issue Tracking
Configurations

Configuration 1

cpe:2.3:a:avahi:avahi:0.8-5:*:*:*:*:*:*:*
Information

Published : 2021-05-07 12:15

Updated : 2021-05-17 05:30

NVD link : CVE-2021-3502

Mitre link : CVE-2021-3502

Products Affected
No products.
CWE
CWE-476

CWE-617