CVE-2023-39191CWE-20

Kernel: ebpf: insufficient stack type checks in dynptr

High · published October 4, 2023

CVSS v3.1
8.2
EPSS
1%
Percentile
44.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00531 · 44.1th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2023-10-04T18:03Z
EPSS history
Timeline
  • 04 OCT 18:03Z
    Kernel: ebpf: insufficient stack type checks in dynptr
    cvelistv5