CVE-2024-9632

Xorg-x11-server: tigervnc: heap-based buffer overflow privilege escalation vulnerability

Description

A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org server is run with root privileges.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options do not 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 0.07%
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 10
Affected: Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support
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 8.4 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 Advanced Mission Critical Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
Affected: Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
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 Update Services for SAP Solutions
Affected: Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:10090 vendor advisory
https://access.redhat.com/errata/RHSA-2024:8798 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9540 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9579 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9601 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9690 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9816 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9818 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9819 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9820 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9901 vendor advisory
https://access.redhat.com/errata/RHSA-2025:7163 vendor advisory
https://access.redhat.com/errata/RHSA-2025:7165 vendor advisory
https://access.redhat.com/errata/RHSA-2025:7458 vendor advisory
https://access.redhat.com/security/cve/CVE-2024-9632 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2317233 issue tracking
http://seclists.org/fulldisclosure/2024/Oct/20
http://www.openwall.com/lists/oss-security/2024/10/29/2
https://lists.debian.org/debian-lts-announce/2024/10/msg00031.html

Frequently Asked Questions

What is the severity of CVE-2024-9632?
CVE-2024-9632 has been scored as a high severity vulnerability.
How to fix CVE-2024-9632?
As a workaround for remediating CVE-2024-9632: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2024-9632 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-9632 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-2024-9632?
CVE-2024-9632 affects Red Hat Red Hat Enterprise Linux 10, Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support, 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 8.4 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 Advanced Mission Critical Update Support, Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, 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 Update Services for SAP Solutions, Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7.
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