CVE-2024-21886

Xorg-x11-server: heap buffer overflow in disabledevice

Description

A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.33%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Affected: Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Affected: Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Affected: Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Affected: Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 6
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:0320 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0557 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0558 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0597 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0607 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0614 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0617 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0621 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0626 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0629 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2169 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2170 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2995 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2996 vendor advisory
https://access.redhat.com/errata/RHSA-2025:12751 vendor advisory
https://access.redhat.com/security/cve/CVE-2024-21886 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2256542 issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-21886?
CVE-2024-21886 has been scored as a high severity vulnerability.
How to fix CVE-2024-21886?
As a workaround for remediating CVE-2024-21886: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2024-21886 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-21886 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-21886?
CVE-2024-21886 affects Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service, Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Red Hat Enterprise Linux 6.
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