CVE Vulnerability

CVE-2020-14354

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.

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

3.3 /10

CVSS v3.0 : LOW

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ Mailing List Third Party Advisory
https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1866838 Exploit Issue Tracking
https://c-ares.haxx.se/changelog.html Release Notes Vendor Advisory
https://packetstormsecurity.com/files/158755/GS20200804145053.txt Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:c-ares_project:c-ares:1.16.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Information

Published : 2021-05-13 02:15

Updated : 2022-04-26 04:05

NVD link : CVE-2020-14354

Mitre link : CVE-2020-14354

Products Affected
No products.
CWE
CWE-415

CWE-416