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openvswitch: limitation in the OVS packet parsing in userspace leads to DoS

🗓️ 15 Mar 2021 14:36:11Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Open vSwitch flaw lets crafted packets widen kernel megaflow, risking denial of service.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
AlpineLinux		CVE-2020-35498
11 Feb 202100:00
–alpinelinux
BDU FSTEC		The vulnerability of the Open vSwitch switch’s microprogramming software, related to uncontrolled resource consumption, allows a hacker to cause a service failure.
9 Mar 202100:00
–bdu_fstec
CBLMariner		CVE-2020-35498 affecting package openvswitch 2.12.0-3
6 Apr 202123:50
–cbl_mariner
Circl		CVE-2020-35498
23 Apr 202520:04
–circl
Tenable Nessus		Citrix Hypervisor <= 8.2 LTSR DoS (CTX306565)
15 Apr 202100:00
–nessus
Tenable Nessus		Debian DLA-2571-1 : openvswitch security update
22 Feb 202100:00
–nessus
Tenable Nessus		Debian DSA-4852-1 : openvswitch - security update
17 Feb 202100:00
–nessus
Tenable Nessus		Fedora 33 : 2:dpdk / openvswitch (2021-fba11d37ee)
5 Mar 202100:00
–nessus
Tenable Nessus		GLSA-202311-16 : Open vSwitch: Multiple Vulnerabilities
26 Nov 202300:00
–nessus
Tenable Nessus		openSUSE Security Update : openvswitch (openSUSE-2021-283)
16 Feb 202100:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64leopenvswitch2.132.13.0-81.el7fdpopenvswitch2.13-2.13.0-81.el7fdp.ppc64le.rpm
Red Hat Enterprise Linux7s390xopenvswitch2.132.13.0-81.el7fdpopenvswitch2.13-2.13.0-81.el7fdp.s390x.rpm
Red Hat Enterprise Linux7x86_64openvswitch2.132.13.0-81.el7fdpopenvswitch2.13-2.13.0-81.el7fdp.x86_64.rpm
Red Hat Enterprise Linux7ppc64leopenvswitch2.13-debuginfo2.13.0-81.el7fdpopenvswitch2.13-debuginfo-2.13.0-81.el7fdp.ppc64le.rpm
Red Hat Enterprise Linux7s390xopenvswitch2.13-debuginfo2.13.0-81.el7fdpopenvswitch2.13-debuginfo-2.13.0-81.el7fdp.s390x.rpm
Red Hat Enterprise Linux7x86_64openvswitch2.13-debuginfo2.13.0-81.el7fdpopenvswitch2.13-debuginfo-2.13.0-81.el7fdp.x86_64.rpm
Red Hat Enterprise Linux7ppc64leopenvswitch2.13-devel2.13.0-81.el7fdpopenvswitch2.13-devel-2.13.0-81.el7fdp.ppc64le.rpm
Red Hat Enterprise Linux7s390xopenvswitch2.13-devel2.13.0-81.el7fdpopenvswitch2.13-devel-2.13.0-81.el7fdp.s390x.rpm
Red Hat Enterprise Linux7x86_64openvswitch2.13-devel2.13.0-81.el7fdpopenvswitch2.13-devel-2.13.0-81.el7fdp.x86_64.rpm
Red Hat Enterprise Linux7ppc64leopenvswitch2.13-ipsec2.13.0-81.el7fdpopenvswitch2.13-ipsec-2.13.0-81.el7fdp.ppc64le.rpm
Rows per page

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28 Jun 2026 09:01Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
CVSS 27.8
EPSS0.08026
SSVC
CWE-400
Open vSwitchpacket parsing limitationuserspace parsingmegaflow kerneldenial of servicesystem availability
6