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Red Hat: CVE-2023-39191: kernel: eBPF: insufficient stack type checks in dynptr (Multiple Advisories)

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Red Hat: CVE-2023-39191: kernel: eBPF: insufficient stack type checks in dynptr (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/04/2023
Created
11/09/2023
Added
11/08/2023
Modified
03/13/2024

Description

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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