CVE-2020-35498

CWE-400 — Uncontrolled Resource Consumption8 documents8 sources
Severity
7.5HIGH
EPSS
5.8%
top 9.53%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Openvswitch OpenvswitchDebian Debian LinuxFedoraproject Fedora
Timeline
PublishedFeb 11
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDopenvswitch/openvswitch2.5.0 — 2.5.12+9
▶Debianopenvswitch< 2.15.0~git20210104.def6eb1ea+dfsg1-5+3
▶CVEListV5openvswitchopenvswitch 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

Also affects: Debian Linux 10.0, 9.0, Fedora 33

Patches

Patch: bugzilla.redhat.com ↗Patch: www.openwall.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-9978-p96m-85pj: A vulnerability was found in openvswitch↗2022-05-24
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CVEList
CVE-2020-35498: A vulnerability was found in openvswitch↗2021-02-11
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OSV
CVE-2020-35498: A vulnerability was found in openvswitch↗2021-02-11
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📋Vendor Advisories

4
Ubuntu
Open vSwitch vulnerability↗2021-02-10
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Red Hat
openvswitch: limitation in the OVS packet parsing in userspace leads to DoS↗2021-02-10
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Microsoft
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↗2021-02-09
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Debian
CVE-2020-35498: openvswitch - A vulnerability was found in openvswitch. A limitation in the implementation of ...↗2020
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