7.6
CWE
190
EPSS
0.176%
Advisory Published
CVE Published
Updated

CVE-2023-6478: Xorg-x11-server: out-of-bounds memory read in rrchangeoutputproperty and rrchangeproviderproperty

First published: Wed Dec 06 2023(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/xorg-server<21.1.10
21.1.10
redhat/xwayland<23.2.3
23.2.3
debian/xorg-server
2:1.20.11-1+deb11u13
2:1.20.11-1+deb11u15
2:21.1.7-3+deb12u9
2:21.1.16-1
debian/xwayland<=2:22.1.9-1
2:24.1.6-1
All of
X.Org Xserver<21.1.10
Any of
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0
All of
Red Hat Xorg-x11-server-xwayland<23.2.3
Any of
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0
Red Hat Enterprise Linux Server EUS=9.2
Debian Linux=10.0
Debian Linux=11.0
Debian Linux=12.0
All of
Tigervnc
Any of
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-6478?

    CVE-2023-6478 is classified as a medium-severity vulnerability due to the potential for sensitive information disclosure.

  • How do I fix CVE-2023-6478?

    To fix CVE-2023-6478, update to the appropriate patched versions of xorg-server or xwayland as specified in the vendor advisories.

  • Which versions of xorg-server are affected by CVE-2023-6478?

    Versions of xorg-server up to 21.1.10 are affected by CVE-2023-6478.

  • What is the nature of the vulnerability in CVE-2023-6478?

    CVE-2023-6478 involves an integer overflow that can lead to an out-of-bounds memory read, potentially disclosing sensitive information.

  • Are there specific distributions impacted by CVE-2023-6478?

    Yes, CVE-2023-6478 impacts several distributions including specific versions of Red Hat Enterprise Linux and Debian.

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