Executive Summary

Summary
Title Open vSwitch vulnerabilities
Informations
Name USN-3873-1 First vendor Publication 2019-01-30
Vendor Ubuntu Last vendor Modification 2019-01-30
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
 
Calculate full CVSS 3.0 Vectors scores

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
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.04 LTS - Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Open vSwitch.

Software Description: - openvswitch: Ethernet virtual switch

Details:

It was discovered that Open vSwitch incorrectly decoded certain packets. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2018-17204)

It was discovered that Open vSwitch incorrectly handled processing certain flows. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-17205)

It was discovered that Open vSwitch incorrectly handled BUNDLE action decoding. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2018-17206)

Update instructions:

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

Ubuntu 18.04 LTS:
openvswitch-common 2.9.2-0ubuntu0.18.04.3

Ubuntu 16.04 LTS:
openvswitch-common 2.5.5-0ubuntu0.16.04.2

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

References:
https://usn.ubuntu.com/usn/usn-3873-1
CVE-2018-17204, CVE-2018-17205, CVE-2018-17206

Package Information:
https://launchpad.net/ubuntu/+source/openvswitch/2.9.2-0ubuntu0.18.04.3
https://launchpad.net/ubuntu/+source/openvswitch/2.5.5-0ubuntu0.16.04.2

Original Source

Url : http://www.ubuntu.com/usn/USN-3873-1

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-617 Reachable Assertion
33 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 10
Application 2
Os 2
Os 1

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2019-01-30 17:18:53
  • First insertion