CVE-2019-6467
A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. The most likely scenario where this might occur is if the server, in addition to performing NXDOMAIN redirection for recursive clients, is also serving a local copy of the root zone or using mirroring to provide the root zone, although other configurations are also possible. Versions affected: BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.46% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- isc/bind
- Source
- security-officer@isc.org
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.