CVE-2020-27827

CVSS 7.5 HIGHEPSS 3.2%CWE-400

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 3.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

18 Mar 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

n/a · lldp/openvswitch

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References

https://bugzilla.redhat.com/show_bug.cgi?id=1921438 https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379471.html https://security.gentoo.org/glsa/202311-16 https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07