Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2021-05-13T14:15:17.503

Last Modified

2024-11-21T05:03:04.703

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 3.3 (LOW)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-120
Type: Primary
CWE-415
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	c-ares	c-ares	1.16.0	Yes
Operating System	fedoraproject	fedora	33	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=1866838 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://c-ares.haxx.se/changelog.html Release Notes, Vendor Advisory ([email protected])
https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e Patch, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ ([email protected])
https://packetstormsecurity.com/files/158755/GS20200804145053.txt Exploit, Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1866838 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://c-ares.haxx.se/changelog.html Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/ (af854a3a-2127-422b-91ae-364da2661108)
https://packetstormsecurity.com/files/158755/GS20200804145053.txt Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)