CVE-2020-35498
openvswitch
HIGH 7.5
At a glance
- Source
- NVD
- EPSS
- EPSS 8.03 % · percentile 95 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Weaknesses (CWE)
- CWE-400 — Uncontrolled Resource Consumption
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1908845
- https://www.openwall.com/lists/oss-security/2021/02/10/4
- https://www.debian.org/security/2021/dsa-4852
- https://lists.debian.org/debian-lts-announce/2021/02/msg00032.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJ4DXFJWMZ325ECZXPZOSK7BOEDJZHPR/
- https://security.gentoo.org/glsa/202311-16
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-23167
- GCVE · GCVE-0-2020-35498
CERT-FR advisories
- CERTFR-2023-AVI-0051 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
- CERTFR-2022-AVI-818 — Vulnérabilité dans Citrix Hypervisor · cert.ssi.gouv.fr
- CERTFR-2021-AVI-227 — Multiples vulnérabilités dans Citrix Hypervisor · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.5.0 < 2.5.12cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.6.0 < 2.6.10cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.7.0 < 2.7.13cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.8.0 < 2.8.11cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.9.0 < 2.9.9cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.10.0 < 2.10.7cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.11.0 < 2.11.6cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.12.0 < 2.12.3cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.13.0 < 2.13.3cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*≥ 2.14.0 < 2.14.2cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| openvswitch | affected openvswitch 2.5.12, openvswitch 2.6.10, openvswitch 2.7.13, openvswitch 2.8.11, openvswitch 2.9.9, openvswitch 2.10.7, openvswitch 2.11.6, openvswitch 2.12.3, openvswitch 2.13.3, openvswitch 2.14.2 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |