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CVE-2023-1668

openvswitch: ip proto 0 triggers incorrect handling

A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.

CVSS 3.1 · 8.2 High EPSS 1.2% KEV · Not listed
Vendors
Cloudbase Debian Redhat
Products
Open Vswitch Debian Linux Enterprise Linux and 5 more
CVE-2022-32166

ovs - buffer over-read

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
Cloudbase Debian
Products
Open Vswitch Debian Linux