CVE-2019-16866

Published: Oct 3, 2019Modified: Nov 21, 2024

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (2)

Products: Nlnetlabs: Unbound · Canonical: Ubuntu Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nlnetlabs Unbound	Before 1.9.4

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 19.04

Related CWEs

CWE-755

Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

CWE-908

Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

References (14)

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

Source: cve@mitre.org

ProductRelease Notes

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

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

PatchVendor Advisory

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

Source: cve@mitre.org

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

Source: cve@mitre.org

Third Party Advisory

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

Source: cve@mitre.org

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