CVE-2019-6468

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-617

Affected software

Vendor	Product	Versions
ISC	BIND 9 Supported Preview Edition	BIND 9 9.10.5-S1 -> 9.11.5-S5

References

https://kb.isc.org/docs/cve-2019-6468Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_20
https://kb.isc.org/docs/cve-2019-6468Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_19_20

Timeline

Published: Oct 9, 2019
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2019

CVE-2019-64697.5An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a CVE-2019-64707.5There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also CVE-2019-64715.9A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch CVE-2019-64726.5A packet containing a malformed DUID can cause the Kea DHCPv6 server process (kea-dhcp6) to exit due to an assertion failure. Versions affec CVE-2019-64736.5An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit CVE-2019-64746.5A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage contains leases which CVE-2019-64757.5Mirror zones are a BIND feature allowing recursive servers to pre-cache zone data provided by other servers. A mirror zone is similar to a z CVE-2019-64767.5A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rat CVE-2019-64777.5With pipelining enabled each incoming query on a TCP connection requires a similar resource allocation to a query received via UDP or via TC CVE-2019-64817.5Abine Blur 7.8.2431 allows remote attackers to conduct "Second-Factor Auth Bypass" attacks by using the "Perform a right-click operation to CVE-2019-64855.9Citrix NetScaler Gateway 12.1 before build 50.31, 12.0 before build 60.9, 11.1 before build 60.14, 11.0 before build 72.17, and 10.5 before CVE-2019-64868.2Go before 1.10.8 and 1.11.x before 1.11.5 mishandles P-521 and P-384 elliptic curves, which allows attackers to cause a denial of service (C