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RedhatCVE-2020-35498

HistoryFeb 11, 2021 - 6:15 p.m.

CVE-2020-35498

2021-02-1118:15:15

CWE-400

redhat

web.nvd.nist.gov

206

openvswitch

vulnerability

denial of service

cve-2020-35498

nvd

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.1

Confidence

High

EPSS

0.004

Percentile

72.2%

JSON

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.

Affected configurations

Nvd

Vulners

Node

openvswitchopenvswitchRange2.5.0–2.5.12

openvswitchopenvswitchRange2.6.0–2.6.10

openvswitchopenvswitchRange2.7.0–2.7.13

openvswitchopenvswitchRange2.8.0–2.8.11

openvswitchopenvswitchRange2.9.0–2.9.9

openvswitchopenvswitchRange2.10.0–2.10.7

openvswitchopenvswitchRange2.11.0–2.11.6

openvswitchopenvswitchRange2.12.0–2.12.3

openvswitchopenvswitchRange2.13.0–2.13.3

openvswitchopenvswitchRange2.14.0–2.14.2

Node

debiandebian_linuxMatch9.0

debiandebian_linuxMatch10.0

Node

fedoraprojectfedoraMatch33

VendorProductVersionCPE
openvswitchopenvswitch*cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
openvswitch	openvswitch	*	cpe:2.3:a:openvswitch:openvswitch::::::::
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "openvswitch",
    "versions": [
      {
        "version": "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",
        "status": "affected"
      }
    ]
  }
]