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High 7.5
c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains
c-ares is an asynchronous resolver library. Prior to 1.34.7, ares_dns_name_parse() enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long desc…
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High 7.5
0-byte UDP payload DoS in c-ares
c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously i…
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High 8.6
A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string,…