CVE-2020-14354

LOW
3.3
CVSS Score
Published: May 13, 2021 at 01:38 PM UTC
Updated: June 17, 2026 at 02:54 AM UTC
2 products affected across 2 vendorsFedoraAres C Ares

Using c-ares by N/A?

Get instant alerts when new vulnerabilities affect c-ares - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
LOW3.3
Exploit prediction
EPSS 0.5%

Description

A possible use-after-free and double-free in c-ares lib version 1.16.0 if ares_destroy() is called prior to ares_getaddrinfo() completing. This flaw possibly allows an attacker to crash the service that uses c-ares lib. The highest threat from this vulnerability is to this service availability.

Affected

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-120CWE-415CWE-416

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card