Executive Summary

Summary
Title DHCP vulnerability
Informations
NameUSN-3973-1First vendor Publication2019-05-13
VendorUbuntuLast vendor Modification2019-05-13
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base ScoreN/AAttack RangeN/A
Cvss Impact ScoreN/AAttack ComplexityN/A
Cvss Expoit ScoreN/AAuthenticationN/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

Summary:

DHCP could be made to crash if it received specially crafted network traffic.

Software Description: - isc-dhcp: DHCP server and client

Details:

It was discovered that DHCP, when built with a mismatched external BIND library, incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause DHCP to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 18.10:
isc-dhcp-server 4.3.5-3ubuntu9.1

Ubuntu 18.04 LTS:
isc-dhcp-server 4.3.5-3ubuntu7.1

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

References:
https://usn.ubuntu.com/usn/usn-3973-1
CVE-2019-6470

Package Information:
https://launchpad.net/ubuntu/+source/isc-dhcp/4.3.5-3ubuntu9.1
https://launchpad.net/ubuntu/+source/isc-dhcp/4.3.5-3ubuntu7.1

Original Source

Url : http://www.ubuntu.com/usn/USN-3973-1

Alert History

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0
DateInformations
2019-05-13 21:18:51
  • First insertion