CVE-2024-0646 (GCVE-0-2024-0646)

Vulnerability from cvelistv5 – Published: 2024-01-17 15:16 – Updated: 2026-08-06 22:24
VLAI
Title
Kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-10 04:00 UTC
CWE
References
URL Tags
https://access.redhat.com/errata/RHSA-2024:0723 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0724 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0725 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0850 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0851 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0876 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0881 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0897 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1248 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1250 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1251 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1253 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1268 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1269 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1278 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1306 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1367 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1368 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1377 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1382 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1404 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2094 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-0646 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2253908 issue-trackingx_refsource_REDHAT
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://lists.debian.org/debian-lts-announce/2024… x_transferred
Impacted products
Vendor Product Version
Affected: 0 , < 6.7-rc5 (semver)
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-513.18.1.rt7.320.el8_9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::nfv
    cpe:/a:redhat:enterprise_linux:8::realtime
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-513.18.1.el8_9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:4.18.0-193.128.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.128.1.rt13.179.el8_2 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.2::nfv
    cpe:/a:redhat:rhel_tus:8.2::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:4.18.0-193.128.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:4.18.0-193.128.1.el8_2 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_tus:8.2::baseos
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Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.125.1.rt7.201.el8_4 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.4::nfv
    cpe:/a:redhat:rhel_tus:8.4::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:4.18.0-305.125.1.el8_4 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
    cpe:/o:redhat:rhel_tus:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:4.18.0-372.91.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support     cpe:/o:redhat:rhel_eus:8.6::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support     cpe:/o:redhat:rhel_eus:8.8::baseos
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Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:4.18.0-477.51.1.el8_8 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.8::crb
    cpe:/o:redhat:rhel_eus:8.8::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-362.24.1.el9_3 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::nfv
    cpe:/a:redhat:enterprise_linux:9::realtime
    cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9::baseos
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Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.93.2.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:5.14.0-70.93.1.rt21.165.el9_0 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::nfv
    cpe:/a:redhat:rhel_eus:9.0::realtime
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support     cpe:/o:redhat:rhel_eus:9.0::baseos
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Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:5.14.0-284.52.1.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
    cpe:/a:redhat:rhel_eus:9.2::crb
    cpe:/o:redhat:rhel_eus:9.2::baseos
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:5.14.0-284.52.1.rt14.337.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::nfv
    cpe:/a:redhat:rhel_eus:9.2::realtime
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Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support     cpe:/o:redhat:rhel_eus:9.2::baseos
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Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-372.91.1.el8_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-22 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-11 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v6.8.1-407 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-19 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v1.0.0-479 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-7 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.4.0-247 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-5 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v1.1.0-227 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.1-470 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v2.9.6-14 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-2 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-24 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v5.8.6-10 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.1.0-525 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.1.0-224 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat RHOL-5.8-RHEL-9 Unaffected: v0.28.1-56 , < * (rpm)
    cpe:/a:redhat:logging:5.8::el9
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Date Public
2023-12-07 06:30
Show details on NVD website

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            {
              "lang": "en",
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          ],
          "title": "Kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination",
          "workarounds": [
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              "value": "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."
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        "dateReserved": "2024-01-17T13:11:12.669Z",
        "dateUpdated": "2026-08-06T22:24:42.795Z",
        "state": "PUBLISHED"
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      "dataType": "CVE_RECORD",
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    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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