CVE-2024-0646

Summary

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.

Affected Software

VendorProductVersion RangeStatus
0 < 6.7-rc5affected
Red HatRed Hat Enterprise Linux 80:4.18.0-513.18.1.rt7.320.el8_9 < *unaffected
Red HatRed Hat Enterprise Linux 80:4.18.0-513.18.1.el8_9 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support0:4.18.0-193.128.1.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service0:4.18.0-193.128.1.rt13.179.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service0:4.18.0-193.128.1.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions0:4.18.0-193.128.1.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:4.18.0-305.125.1.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service0:4.18.0-305.125.1.rt7.201.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service0:4.18.0-305.125.1.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions0:4.18.0-305.125.1.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support0:4.18.0-372.91.1.el8_6 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:4.18.0-477.51.1.el8_8 < *unaffected
Red HatRed Hat Enterprise Linux 90:5.14.0-362.24.1.el9_3 < *unaffected
Red HatRed Hat Enterprise Linux 90:5.14.0-362.24.1.el9_3 < *unaffected
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:5.14.0-70.93.2.el9_0 < *unaffected
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:5.14.0-70.93.1.rt21.165.el9_0 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.52.1.el9_2 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.52.1.rt14.337.el9_2 < *unaffected
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 80:4.18.0-372.91.1.el8_6 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-22 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-11 < *unaffected
Red HatRHOL-5.8-RHEL-9v6.8.1-407 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-19 < *unaffected
Red HatRHOL-5.8-RHEL-9v1.0.0-479 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-7 < *unaffected
Red HatRHOL-5.8-RHEL-9v0.4.0-247 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-5 < *unaffected
Red HatRHOL-5.8-RHEL-9v1.1.0-227 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.1-470 < *unaffected
Red HatRHOL-5.8-RHEL-9v2.9.6-14 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-2 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-24 < *unaffected
Red HatRHOL-5.8-RHEL-9v5.8.6-10 < *unaffected
Red HatRHOL-5.8-RHEL-9v0.1.0-525 < *unaffected
Red HatRHOL-5.8-RHEL-9v0.1.0-224 < *unaffected
Red HatRHOL-5.8-RHEL-9v0.28.1-56 < *unaffected

Weaknesses

  • CWE-787: Out-of-bounds Write

Workarounds

To mitigate this issue, prevent module tls from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References