Low severity3.3NVD Advisory· Published May 13, 2021· Updated Jun 17, 2026
CVE-2020-14354
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- c-ares/c-ares libdescription
Patches
Vulnerability mechanics
References
5- github.com/c-ares/c-ares/commit/1cc7e83c3bdfaafbc5919c95025592d8de3a170envdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdExploitIssue TrackingPatchThird Party Advisory
- packetstormsecurity.com/files/158755/GS20200804145053.txtnvdExploitThird Party AdvisoryVDB Entry
- c-ares.haxx.se/changelog.htmlnvdRelease NotesVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/nvd
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