CVE-2020-14354

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.

References

https://packetstormsecurity.com/files/158755/GS20200804145053.txt

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/

https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e

https://c-ares.haxx.se/changelog.html

https://bugzilla.redhat.com/show_bug.cgi?id=1866838

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3