CVE-2019-15753
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
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.
Overview
- CVE ID
- CVE-2019-15753
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-08-28T21:15:10
- Last Modified Date
- 2020-08-24T17:37:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:openstack:os-vif:*:*:*:*:*:*:*:* | 1 | OR | 1.15.0 | 1.15.2 |
| cpe:2.3:a:openstack:os-vif:1.16.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
| http://www.openwall.com/lists/oss-security/2019/08/29/2 | Mailing List Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-15753 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15753 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:35:52 | Added to TrackCVE | |||
| 2022-12-04 02:03:40 | 2019-08-28T21:15Z | 2019-08-28T21:15:10 | CVE Published Date | updated |
| 2022-12-04 02:03:40 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-04 02:03:40 | Analyzed | Vulnerability Status | updated |