Executive Summary

Summary
Title Bind vulnerabilities
Informations
Name USN-3893-1 First vendor Publication 2019-02-22
Vendor Ubuntu Last vendor Modification 2019-02-22
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 :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Bind.

Software Description: - bind9: Internet Domain Name Server

Details:

Toshifumi Sakaguchi discovered that Bind incorrectly handled memory. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-5744)

It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2018-5745)

It was discovered that Bind incorrectly handled certain controls for zone transfers, contrary to expectations. (CVE-2019-6465)

Update instructions:

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

Ubuntu 18.10:
bind9 1:9.11.4+dfsg-3ubuntu5.1

Ubuntu 18.04 LTS:
bind9 1:9.11.3+dfsg-1ubuntu1.5

Ubuntu 16.04 LTS:
bind9 1:9.10.3.dfsg.P4-8ubuntu1.12

Ubuntu 14.04 LTS:
bind9 1:9.9.5.dfsg-3ubuntu0.19

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

References:
https://usn.ubuntu.com/usn/usn-3893-1
CVE-2018-5744, CVE-2018-5745, CVE-2019-6465

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.11.4+dfsg-3ubuntu5.1
https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.5
https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.12
https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.19

Original Source

Url : http://www.ubuntu.com/usn/USN-3893-1

Alert History

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0
Date Informations
2019-02-22 13:18:35
  • First insertion