CVE-2023-6816 (GCVE-0-2023-6816)

Vulnerability from cvelistv5 – Published: 2024-01-18 04:31 – Updated: 2025-11-20 07:07
VLAI?
Summary
A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.
CWE
Assigner
References
https://access.redhat.com/errata/RHSA-2024:0320 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0557 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0558 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0597 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0607 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0614 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0617 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0621 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0626 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:0629 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2169 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2170 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2996 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12751 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-6816 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2257691 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10.13 , < * (rpm)
    cpe:/o:redhat:rhel_els:6
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Unaffected: 0:1.20.4-27.el7_9 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:7::computenode
    cpe:/o:redhat:enterprise_linux:7::server
    cpe:/o:redhat:enterprise_linux:7::workstation
    cpe:/o:redhat:enterprise_linux:7::client
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7 Unaffected: 0:1.8.0-31.el7_9 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:7::computenode
    cpe:/o:redhat:enterprise_linux:7::server
    cpe:/o:redhat:enterprise_linux:7::workstation
    cpe:/o:redhat:enterprise_linux:7::client
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.13.1-2.el8_9.7 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:21.1.3-15.el8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:1.9.0-15.el8_2.9 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.2::appstream
    cpe:/a:redhat:rhel_aus:8.2::appstream
    cpe:/a:redhat:rhel_tus:8.2::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:1.9.0-15.el8_2.9 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.2::appstream
    cpe:/a:redhat:rhel_aus:8.2::appstream
    cpe:/a:redhat:rhel_tus:8.2::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:1.9.0-15.el8_2.9 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.2::appstream
    cpe:/a:redhat:rhel_aus:8.2::appstream
    cpe:/a:redhat:rhel_tus:8.2::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.8 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.4::appstream
    cpe:/a:redhat:rhel_tus:8.4::appstream
    cpe:/a:redhat:rhel_aus:8.4::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:1.11.0-8.el8_4.8 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.4::appstream
    cpe:/a:redhat:rhel_tus:8.4::appstream
    cpe:/a:redhat:rhel_aus:8.4::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:1.11.0-8.el8_4.8 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.4::appstream
    cpe:/a:redhat:rhel_tus:8.4::appstream
    cpe:/a:redhat:rhel_aus:8.4::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:1.12.0-6.el8_6.9 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.6::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:1.12.0-15.el8_8.7 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.8::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.13.1-3.el9_3.6 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-24.el9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:22.1.9-5.el9 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:1.11.0-22.el9_0.8 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.0::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:1.12.0-14.el9_2.5 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Credits
Red Hat would like to thank Jan-Niklas Sohn (Trend Micro Zero Day Initiative) for reporting this issue.
Show details on NVD website

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[\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2024:0629\", \"name\": \"RHSA-2024:0629\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2024:2169\", \"name\": \"RHSA-2024:2169\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2024:2170\", \"name\": \"RHSA-2024:2170\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2024:2996\", \"name\": \"RHSA-2024:2996\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2025:12751\", \"name\": \"RHSA-2025:12751\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2023-6816\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2257691\", \"name\": \"RHBZ#2257691\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device\u0027s particular number of buttons, leading to a heap overflow if a bigger value was used.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2025-11-20T07:07:48.385Z\"}, \"x_redhatCweChain\": \"CWE-787: Out-of-bounds Write\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-6816\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-20T07:07:48.385Z\", \"dateReserved\": \"2023-12-14T04:34:38.017Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2024-01-18T04:31:07.908Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

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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