CVE-2020-8616

CVE-2020-8616 (ISC BIND): A denial-of-service exists due to failure to limit the number of fetches when processing referrals. A remote attacker can craft referrals to cause a recursing server to perform a very large number of fetches, degrading performance and enabling potential reflection attack...

CVE-2020-8617

CVE-2020-8617 involves ISC BIND and is triggered by a logic error in the TSIG validity check (tsig.c). A remote attacker who can guess or know the TSIG key name could cause the server to reach an inconsistent state or trigger an assertion failure, leading to a denial of service. Several connected...

CVE-2020-8620

CVE-2020-8620 affects BIND 9.15.6–9.16.5 and 9.17.0–9.17.3, where libuv-based TCP handling allows an attacker to send data to trigger an assertion failure and crash the server. The vulnerability stems from an incorrectly specified maximum buffer size that can be exploited by a specially crafted l...