PT-2025-49734 · Unknown+4 · Openvswitch+4
Published
2025-12-09
·
Updated
2026-03-24
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CVE-2023-53843
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw in the networking component, specifically within Open vSwitch (OVS). The issue stems from a lack of input validation for the
ifindex parameter, allowing the creation of network device ports with negative ifindex values. This can occur due to changes in net-next (commit 759ab1edb56c) that refactored the handling of pre-assigned ifindex values. The vulnerability was identified through testing with YNL. The ifindex parameter is used to identify network interfaces. Exploitation involves creating a netdev port with a negative ifindex value.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Centos
Linux Kernel
Openvswitch
Red Hat
Ynl