CVE-2023-6478

Xorg-x11-server: out-of-bounds memory read in rrchangeoutputproperty and rrchangeproviderproperty

Description

A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive information.

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

7.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 1.02% Top 25%
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 Vendor Advisory x.org
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
Affected: Red Hat Red Hat Enterprise Linux 6
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2023:7886 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0006 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0009 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0010 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0014 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0015 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0016 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0017 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0018 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0020 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/security/cve/CVE-2023-6478 vdb entry vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253298 issue tracking
https://gitlab.freedesktop.org/xorg/xserver/-/commit/14f480010a93ff962fef66a16412fafff81ad632 patch
https://lists.x.org/archives/xorg-announce/2023-December/003435.html vendor advisory
http://www.openwall.com/lists/oss-security/2023/12/13/1
https://lists.debian.org/debian-lts-announce/2023/12/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6R63Z6GIWM3YUNZRCGFODUXLW3GY2HD6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7PP47YXKM5ETLCYEF6473R3VFCJ6QT2S/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFHV5KCQ2SVOD4QMCPZ5HC6YL44L7YJD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LJDFWDB7EQVZA45XDP7L5WRSRWS6RVRR/
https://security.gentoo.org/glsa/202401-30
https://security.netapp.com/advisory/ntap-20240125-0003/
https://www.debian.org/security/2023/dsa-5576

Frequently Asked Questions

What is the severity of CVE-2023-6478?
CVE-2023-6478 has been scored as a high severity vulnerability.
How to fix CVE-2023-6478?
As a workaround for remediating CVE-2023-6478: 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-2023-6478 being actively exploited in the wild?
It is possible that CVE-2023-6478 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-6478?
CVE-2023-6478 affects 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, Red Hat Red Hat Enterprise Linux 6.
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