Vulnerable component: ISC BIND
CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C
CWE-ID: CWE-617 - Reachable Assertion
The vulnerability allows a remote attacker to perform denial of service attack.
The vulnerability exists due to assertion failure in dns_db_findrdataset() function within db.c when named is configured as a master server. A remote unauthenticated attacker can send an ANY record in the prerequisite section of a crafted dynamic update message and trigger assertion failure and daemon exit.
Successful exploitation of this vulnerability may allow an attacker to perform denial of service (DoS) attack.
Note: this vulnerability is being actively exploited.