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CVE-2023-42752

Kernel: integer overflow in igmpv3_newpack leading to exploitable memory access

Published: 10/13/2023 Last updated: 8/2/2024 Reserved: 9/13/2023

An integer overflow flaw was found in the Linux kernel. This issue leads to the kernel allocating `skb_shared_info` in the userspace, which is exploitable in systems without SMAP protection since `skb_shared_info` contains references to function pointers.

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

Metrics

Version Score Severity Vector String
3.1 5.5 Medium CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt 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 (9)

Product Vendor Version
Fedora Fedora See references
Red Hat Enterprise Linux 6 Red Hat <= 4.19.*
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat 6.2.1
Red Hat Enterprise Linux 9 Red Hat 6.2.25
Red Hat Enterprise Linux 8 Red Hat 6.2.3
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat < 25.04.2
Kernel n/a 6.1.12

References (10)