CVE-2021-3468

MEDIUM
5.5
CVSS Score
Published: June 2, 2021 at 03:09 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsDebian LinuxAvahi

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%

Description

A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.80.6 ≤ v ≤ 0.8

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-835

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