Unrated severityNVD Advisory· Published Mar 18, 2021· Updated Dec 3, 2025
CVE-2020-27827
CVE-2020-27827
Description
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
41- OpenvSwitch/OpenvSwitchdescription
- osv-coords40 versionspkg:rpm/almalinux/lldpdpkg:rpm/almalinux/lldpd-develpkg:rpm/opensuse/openvswitch&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/openvswitch&distro=openSUSE%20Tumbleweedpkg:rpm/suse/openvswitch&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/openvswitch&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/openvswitch&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/openvswitch&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/openvswitch&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/openvswitch&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/openvswitch&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/openvswitch&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/openvswitch&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/openvswitch&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/openvswitch&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/openvswitch&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/openvswitch-dpdk&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/openvswitch-dpdk&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/openvswitch-dpdk&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/openvswitch-dpdk&distro=SUSE%20OpenStack%20Cloud%207
< 1.0.18-4.el9+ 39 more
- (no CPE)range: < 1.0.18-4.el9
- (no CPE)range: < 1.0.18-4.el9
- (no CPE)range: < 2.13.2-lp152.3.9.1
- (no CPE)range: < 2.14.2-11.3
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-6.30.2
- (no CPE)range: < 2.11.5-6.30.2
- (no CPE)range: < 2.13.2-9.11.1
- (no CPE)range: < 2.13.2-9.11.1
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.8.10-4.23.1
- (no CPE)range: < 2.11.5-3.3.2
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-6.30.2
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.8.10-4.23.1
- (no CPE)range: < 2.11.5-3.3.2
- (no CPE)range: < 2.11.5-6.30.2
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.11.5-3.12.1
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.8.10-4.23.1
- (no CPE)range: < 2.7.12-3.36.1
- (no CPE)range: < 2.8.10-4.23.1
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.5.11-25.26.1
- (no CPE)range: < 2.5.11-25.26.1
Patches
Vulnerability mechanics
References
8- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/mitrevendor-advisory
- security.gentoo.org/glsa/202311-16mitrevendor-advisory
- bugzilla.redhat.com/show_bug.cgimitre
- cert-portal.siemens.com/productcert/pdf/ssa-941426.pdfmitre
- mail.openvswitch.org/pipermail/ovs-dev/2021-January/379471.htmlmitre
- us-cert.cisa.gov/ics/advisories/icsa-21-194-07mitre
News mentions
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