PT-2023-5552
CVE-2023-39191
·
Published
2023-01-20
·
Updated
2026-10-18
Description by
CVSS 3.1
8.2
HighMetricsAV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions
Linux Kernel (affected versions not specified)
Description
The issue is related to an improper input validation flaw in the eBPF subsystem of the Linux kernel. This flaw occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. As a result, an attacker with CAP BPF privileges may be able to escalate privileges and execute arbitrary code in the context of the kernel.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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