CVE-2020-22217

Summary

CVE-2020-22217 is a buffer overflow vulnerability that affects c-ares versions before 1_16_1 up to and including 1_17_0. This issue is due to a flaw in the function "ares_parse_soa_reply" in the file "ares_parse_soa_reply.c". An attacker can exploit this vulnerability by sending maliciously crafted SOA (Start of Authority) reply messages to a DNS (Domain Name System) resolver using c-ares. Successful exploitation could result in arbitrary code execution, leading to potential security compromises. It is crucial for users to update their c-ares installations to a patched version to mitigate this risk.

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