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CVE-2024-0646

Kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination

Published: 1/17/2024 Last updated: 8/6/2026 Reserved: 1/17/2024

An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.

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

Metrics

Version Score Severity Vector String
3.1 7 High CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/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 (86)

Product Vendor Version
Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat n/a
n/a
Red Hat Enterprise Linux 7 Red Hat < 5.38.2
Red Hat Enterprise Linux 6 Red Hat < 5.36.3
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 7 Red Hat < 10.0.26100.6899
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat n/a
< 6.1.7601.26321
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 6 Red Hat < 10.0.25398.1913
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat < 106.0.5249.62
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Red Hat < 10.0.22621.6060
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat < 108.0.5359.71
Red Hat Enterprise Linux 8 Red Hat < 6.3.9600.20778
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat < 10.0.17763.7919
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat < 6.3.9600.20778
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat < 19.0
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat 15
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat n/a
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat n/a
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat n/a
Red Hat Enterprise Linux 7 Red Hat < 10.0.26100.6899
Red Hat Enterprise Linux 8 Red Hat < 6.2.9200.24075
Red Hat Enterprise Linux 8.4 Telecommunications Update Service 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 n/a
Red Hat Enterprise Linux 7 Red Hat < *
Red Hat Enterprise Linux 9 Red Hat < *
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat n/a
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat n/a
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat < 10.0.10240.21161
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat < 10.0.19044.6456
Red Hat Enterprise Linux 8 Red Hat < 6.2.9200.24075
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat 14
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat 13
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat < 10.0.14393.8519
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat < 10.0.19045.6456
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat n/a
RHOL-5.8-RHEL-9 Red Hat < 10.0.22631.6060
RHOL-5.8-RHEL-9 Red Hat n/a
RHOL-5.8-RHEL-9 Red Hat < 3.17.4
RHOL-5.8-RHEL-9 Red Hat < 10.0.22631.6060
RHOL-5.8-RHEL-9 Red Hat < 10.0.26100.6899
RHOL-5.8-RHEL-9 Red Hat n/a
RHOL-5.8-RHEL-9 Red Hat < 10.0.26200.6899
RHOL-5.8-RHEL-9 Red Hat 13.1.x
RHOL-5.8-RHEL-9 Red Hat < 6.1.7601.27974
RHOL-5.8-RHEL-9 Red Hat 12.1.x
RHOL-5.8-RHEL-9 Red Hat < 6.1.7601.27974
RHOL-5.8-RHEL-9 Red Hat 11.6.x
RHOL-5.8-RHEL-9 Red Hat < 17.0.x*
RHOL-5.8-RHEL-9 Red Hat < 6.0.6003.23571
RHOL-5.8-RHEL-9 Red Hat < 6.0.6003.23571
RHOL-5.8-RHEL-9 Red Hat < 16.1.x*
RHOL-5.8-RHEL-9 Red Hat < 15.1.5.1
RHOL-5.8-RHEL-9 Red Hat < 6.2.9200.25722
RHOL-5.8-RHEL-9 Red Hat < 14.1.4.6
RHOL-5.8-RHEL-9 Red Hat < 6.2.9200.25722
RHOL-5.8-RHEL-9 Red Hat n/a
RHOL-5.8-RHEL-9 Red Hat < 6.3.9600.22824
RHOL-5.8-RHEL-9 Red Hat < 6.3.9600.22824
RHOL-5.8-RHEL-9 Red Hat < 10.0.14393.8519
RHOL-5.8-RHEL-9 Red Hat < 10.0.14393.8519
RHOL-5.8-RHEL-9 Red Hat n/a
RHOL-5.8-RHEL-9 Red Hat < 10.0.17763.7919
RHOL-5.8-RHEL-9 Red Hat n/a
RHOL-5.8-RHEL-9 Red Hat < 10.0.17763.7919
RHOL-5.8-RHEL-9 Red Hat < 145.0.7632.109
RHOL-5.8-RHEL-9 Red Hat < 5.34.3
RHOL-5.8-RHEL-9 Red Hat < 10.0.20348.4294

References (102)