CVE-2020-27827
highPriorität · verfolgen · 31EPSS 0.032 · 88. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
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.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenSIMATIC CP 1243-1 (6GK7243-1BX30-0XE0)siemens_psirt
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0)siemens_psirt
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0)siemens_psirt
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0)siemens_psirt
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIMATIC CP 1543-1 (6GK7543-1AX00-0XE0)siemens_psirt
Update to V3.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109800773/ - BehobenSIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)siemens_psirt
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIMATIC CP 1545-1 (6GK7545-1GX00-0XE0)siemens_psirt
Update to V1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811116/ - BehobenSIMATIC HMI Unified Comfort Panelssiemens_psirt
Update to V17 or later version
https://support.industry.siemens.com/cs/ww/en/view/109746530 - BehobenSINUMERIK ONE MCPsiemens_psirt
Update to V2.0.1 or later version Please contact your Siemens representative for information on how to obtain the update.
- BehobenSIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0)siemens_psirt
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0)siemens_psirt
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0)siemens_psirt
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIPLUS NET CP 1543-1 (6AG1543-1AX00-2XE0)siemens_psirt
Update to V3.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109800773/ - BehobenSIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0)siemens_psirt
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0)siemens_psirt
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)siemens_psirt
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109798331/ - BehobenTIM 1531 IRC (6GK7543-1MX00-0XE0)siemens_psirt
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109798331/ - BehobenSIMATIC CP 1243-1 (6GK7243-1BX30-0XE0)cisa_csaf_ot
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0)cisa_csaf_ot
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0)cisa_csaf_ot
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0)cisa_csaf_ot
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIMATIC CP 1543-1 (6GK7543-1AX00-0XE0)cisa_csaf_ot
Update to V3.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109800773/ - BehobenSIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)cisa_csaf_ot
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIMATIC CP 1545-1 (6GK7545-1GX00-0XE0)cisa_csaf_ot
Update to V1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109811116/ - BehobenSIMATIC HMI Unified Comfort Panelscisa_csaf_ot
Update to V17 or later version
https://support.industry.siemens.com/cs/ww/en/view/109746530 - BehobenSINUMERIK ONE MCPcisa_csaf_ot
Update to V2.0.1 or later version Please contact your Siemens representative for information on how to obtain the update.
- BehobenSIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0)cisa_csaf_ot
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0)cisa_csaf_ot
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0)cisa_csaf_ot
Update to V2.2.28 or later version
https://support.industry.siemens.com/cs/ww/en/view/109817067/ - BehobenSIPLUS NET CP 1543-1 (6AG1543-1AX00-2XE0)cisa_csaf_ot
Update to V3.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109800773/ - BehobenSIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0)cisa_csaf_ot
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0)cisa_csaf_ot
Update to V3.3.46 or later version
https://support.industry.siemens.com/cs/ww/en/view/109812218 - BehobenSIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)cisa_csaf_ot
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109798331/ - BehobenTIM 1531 IRC (6GK7543-1MX00-0XE0)cisa_csaf_ot
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109798331/ - MitigationSIMATIC CP 1243-1 (6GK7243-1BX30-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1543-1 (6GK7543-1AX00-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1545-1 (6GK7545-1GX00-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC HMI Unified Comfort Panelssiemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSINUMERIK ONE MCPsiemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS NET CP 1543-1 (6AG1543-1AX00-2XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationTIM 1531 IRC (6GK7543-1MX00-0XE0)siemens_psirt
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1243-1 (6GK7243-1BX30-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1543-1 (6GK7543-1AX00-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC CP 1545-1 (6GK7545-1GX00-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIMATIC HMI Unified Comfort Panelscisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSINUMERIK ONE MCPcisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS NET CP 1543-1 (6AG1543-1AX00-2XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationSIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
- MitigationTIM 1531 IRC (6GK7543-1MX00-0XE0)cisa_csaf_ot
Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.9–7.5
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (105)
Betroffene Produkte und Versionsbereiche.
Advisories (3)
Hersteller- und Ökosystem-Meldungen dazu.
- SSA-941426SSA-941426: Multiple LLDP Vulnerabilities in Industrial Products2021-07-13csaf · siemens_psirtDE
There are multiple vulnerabilities in an underlying Link Layer Discovery Protocol (LLDP) third party library. Siemens has released updates for the affected products and recommends to update to the latest versions.
- WID-SEC-W-2023-0916Red Hat Enterprise Linux: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2021-02-11csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux und SUSE Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.
- ICSA-21-194-07Siemens Industrial Products LLDP (Update D)2021-07-13icsa · cisa_csaf_otUS
There are multiple vulnerabilities in an underlying Link Layer Discovery Protocol (LLDP) third party library. Siemens has released updates for the affected products and recommends to update to the latest versions.
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (48)
Externe Belege — Patches, Meldungen, Analysen.
- https://bugzilla.redhat.com/show_bug.cgi?id=1921438cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdfcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/cnnvd
- https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379471.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-27827cnnvd
- https://packetstormsecurity.com/files/161391/Red-Hat-Security-Advisory-2021-0497-01.htmlcnnvd
Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan