CVE-2023-6816

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/18/2024

Last Modified3/19/2026

Sourcenvd

Honeypot Sightings0

Affected Products

debian:debian_linuxfedoraproject:fedoraredhat:enterprise_linux_desktopredhat:enterprise_linux_serverredhat:enterprise_linux_workstationx.org:x_serverx.org:xwayland

Weaknesses (CWE)

CWE-787CWE-787

References

https://access.redhat.com/errata/RHSA-2024:0320(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0557(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0558(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0597(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0607(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0614(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0617(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0621(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0626(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:0629(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:2169(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:2170(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:2995(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2024:2996(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2025:12751(secalert@redhat.com)

https://access.redhat.com/security/cve/CVE-2023-6816(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2257691(secalert@redhat.com)

http://www.openwall.com/lists/oss-security/2024/01/18/1(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0320(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0557(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0558(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0597(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0607(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0614(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0617(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0621(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0626(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:0629(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:2169(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:2170(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/errata/RHSA-2024:2996(af854a3a-2127-422b-91ae-364da2661108)

https://access.redhat.com/security/cve/CVE-2023-6816(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=2257691(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2024/01/msg00016.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5J4H7CH565ALSZZYKOJFYDA5KFLG6NUK/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJBMCWQ54R6ZL3MYU2D2JBW6JMZL7BQW/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZ75X54CN4IFYMIV7OK3JVZ57FHQIGIC/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202401-30(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20240307-0006/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.