A vulnerability has been identified in pdnsd, which could be exploited by remote attackers to poison a vulnerable DNS cache. This issue is caused due to the DNS server not sufficiently randomising DNS transaction IDs and UDP source ports in produced DNS queries, which may allow an attacker to more easily forge DNS answers that can poison DNS caches.
Note: An error in "p_exec_query()" [src/dns_query.c] has also been reported, which could be exploited to cause a denial of service via an overly long reply with a large number of entries in the answer section.
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