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CVE-2023-39191

Kernel: ebpf: insufficient stack type checks in dynptr

Published: 10/4/2023 Last updated: 11/6/2025 Reserved: 7/25/2023

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 8.2 High CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (11)

Product Vendor Version
Red Hat Enterprise Linux 9 Red Hat QFW7114
Red Hat Enterprise Linux 9 Red Hat QFW7124
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat QMP1000
Red Hat Enterprise Linux 6 Red Hat Qualcomm 215 Mobile Platform
Red Hat Enterprise Linux 7 Red Hat Qualcommr Video Collaboration VC1 Platform
Red Hat Enterprise Linux 8 Red Hat Qualcommr Video Collaboration VC5 Platform
Red Hat Enterprise Linux 8 Red Hat QXM8083
Red Hat Enterprise Linux 7 Red Hat Qualcommr Video Collaboration VC3 Platform
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat QRB5165M
Red Hat Enterprise Linux 9 Red Hat Robotics RB2 Platform
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat QRB5165N

References (28)

Credits (2)