CVE Vulnerability

CVE-2019-16866

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog Product Release Notes
https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt Patch Vendor Advisory
https://usn.ubuntu.com/4149-1/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4544
https://seclists.org/bugtraq/2019/Oct/23
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/
Configurations

Configuration 1

cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
Information

Published : 2019-10-03 07:15

Updated : 2020-08-24 05:37

NVD link : CVE-2019-16866

Mitre link : CVE-2019-16866

Products Affected

Nlnetlabs

Unbound

CWE
CWE-755

CWE-908