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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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/

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Configurations

Configuration 1 (hide)

cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

Information

Published : 2019-10-03 12:15

Updated : 2020-08-24 10:37

NVD link : CVE-2019-16866

Mitre link : CVE-2019-16866

JSON object : View

CWE

CWE-908

Use of Uninitialized Resource

CWE-755

Improper Handling of Exceptional Conditions

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Products Affected

canonical

ubuntu_linux

nlnetlabs

unbound

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