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CVE-2023-3567

Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race

Published: 7/24/2023 Last updated: 11/15/2024 Reserved: 7/9/2023

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.

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

Metrics

Version Score Severity Vector String
3.1 7.1 High CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 (15)

Product Vendor Version
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Red Hat <= None
Red Hat Enterprise Linux 6 Red Hat < 8.0.0.135
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat <= 5.15.*
Red Hat Enterprise Linux 9 Red Hat <= 2.0.3
Red Hat Enterprise Linux 9 Red Hat < *
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat <= 2.4.2-p1
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat <= 2.6.7
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat <= None
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat <= 2.0.1
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat < 8609f5cfdc872fc3a462efa6a3eca5cb1e2f6446

References (26)