Detections
Analytics

CVE-2019-16866

high

Description

Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.

References

https://www.debian.org/security/2019/dsa-4544

https://usn.ubuntu.com/4149-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/

https://seclists.org/bugtraq/2019/Oct/23

https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt

https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog

Details

Source: Mitre, NVD

Published: 2019-10-03

Updated: 2023-11-07

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.01248