Executive Summary

Summary
Title Unbound vulnerability
Informations
Name USN-4149-1 First vendor Publication 2019-10-08
Vendor Ubuntu Last vendor Modification 2019-10-08
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
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Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.04

Summary:

Unbound could be made to crash if it received a specially crafted NOTIFY query.

Software Description: - unbound: validating, recursive, caching DNS resolver

Details:

It was discovered that Unbound incorrectly handled certain NOTIFY queries. An attacker could possibly use this issue to cause a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04:
libunbound8 1.9.0-2ubuntu0.1
unbound 1.9.0-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4149-1
CVE-2019-16866

Package Information:
https://launchpad.net/ubuntu/+source/unbound/1.9.0-2ubuntu0.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4149-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-755 Improper Handling of Exceptional Conditions

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 38
Os 1

Alert History

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0
1
Date Informations
2019-10-08 21:23:37
  • Multiple Updates
2019-10-08 17:19:11
  • First insertion