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.

CVSS v3 3.3 LOW
CVSS v2.0 2.1 LOW

3.3^/10

CVSS v3 : LOW

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

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1866838	Exploit Issue Tracking Patch Third Party Advisory
https://c-ares.haxx.se/changelog.html	Release Notes Vendor Advisory
https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e	Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
https://packetstormsecurity.com/files/158755/GS20200804145053.txt	Exploit Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:c-ares:c-ares:1.16.0:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-05-13 14:15

Updated : 2023-11-07 03:17

NVD link : CVE-2020-14354

Mitre link : CVE-2020-14354

CVE.ORG link : CVE-2020-14354

JSON object : View

Products Affected

fedoraproject

fedora

c-ares

c-ares

CWE

CWE-415

Double Free

CWE-416

Use After Free

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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