9.1
CRITICAL
CVE-2019-15753
OpenStack os-vif Ethernet Flooding vulnerability
Description

In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC aging time of 0 disables MAC learning in linuxbridge, forcing obligatory Ethernet flooding of non-local destinations, which both impedes network performance and allows users to possibly view the content of packets for instances belonging to other tenants sharing the same network. Only deployments using the linuxbridge backend are affected. This occurs in PyRoute2.add() in internal/command/ip/linux/impl_pyroute2.py.

INFO

Published Date :

Aug. 28, 2019, 9:15 p.m.

Last Modified :

Aug. 24, 2020, 5:37 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-15753 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Openstack os-vif
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-15753.

URL Resource
http://www.openwall.com/lists/oss-security/2019/08/29/2 Mailing List Patch Third Party Advisory
https://launchpad.net/bugs/1837252 Issue Tracking Third Party Advisory
https://review.opendev.org/672834 Patch
https://review.opendev.org/678098 Patch
https://security.openstack.org/ossa/OSSA-2019-004.html Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-15753 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-15753 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-399 CWE-770
  • Initial Analysis by [email protected]

    Sep. 04, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type http://www.openwall.com/lists/oss-security/2019/08/29/2 No Types Assigned http://www.openwall.com/lists/oss-security/2019/08/29/2 Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://launchpad.net/bugs/1837252 No Types Assigned https://launchpad.net/bugs/1837252 Issue Tracking, Third Party Advisory
    Changed Reference Type https://review.opendev.org/672834 No Types Assigned https://review.opendev.org/672834 Patch
    Changed Reference Type https://review.opendev.org/678098 No Types Assigned https://review.opendev.org/678098 Patch
    Changed Reference Type https://security.openstack.org/ossa/OSSA-2019-004.html No Types Assigned https://security.openstack.org/ossa/OSSA-2019-004.html Patch, Vendor Advisory
    Added CWE CWE-399
    Added CPE Configuration OR *cpe:2.3:a:openstack:os-vif:*:*:*:*:*:*:*:* versions from (including) 1.15.0 up to (excluding) 1.15.2 *cpe:2.3:a:openstack:os-vif:1.16.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 29, 2019

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2019/08/29/2 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 29, 2019

    Action Type Old Value New Value
    Added Reference https://security.openstack.org/ossa/OSSA-2019-004.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-15753 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-15753 weaknesses.

CAPEC-125: Flooding Flooding CAPEC-130: Excessive Allocation Excessive Allocation CAPEC-147: XML Ping of the Death XML Ping of the Death CAPEC-197: Exponential Data Expansion Exponential Data Expansion CAPEC-229: Serialized Data Parameter Blowup Serialized Data Parameter Blowup CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-469: HTTP DoS HTTP DoS CAPEC-482: TCP Flood TCP Flood CAPEC-486: UDP Flood UDP Flood CAPEC-487: ICMP Flood ICMP Flood CAPEC-488: HTTP Flood HTTP Flood CAPEC-489: SSL Flood SSL Flood CAPEC-490: Amplification Amplification CAPEC-491: Quadratic Data Expansion Quadratic Data Expansion CAPEC-493: SOAP Array Blowup SOAP Array Blowup CAPEC-494: TCP Fragmentation TCP Fragmentation CAPEC-495: UDP Fragmentation UDP Fragmentation CAPEC-496: ICMP Fragmentation ICMP Fragmentation CAPEC-528: XML Flood XML Flood
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.43 }} 0.17%

score

0.74974

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: