Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.1%
CVSS Severity
CVSS v3 Score 3.3
CVSS v2 Score 2.1
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838
- https://c-ares.haxx.se/changelog.html
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
- https://packetstormsecurity.com/files/158755/GS20200804145053.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=1866838
- https://c-ares.haxx.se/changelog.html
- https://github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170e
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
- https://packetstormsecurity.com/files/158755/GS20200804145053.txt
Products affected by CVE-2020-14354
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cpe:2.3:a:c-ares:c-ares:1.16.0
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cpe:2.3:o:fedoraproject:fedora:33