Headline
CVE-2023-6377: cve-details
A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.
Red Hat Product Security Center
Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities.
Product Security Center
Related news
Gentoo Linux Security Advisory 202401-30 - Multiple vulnerabilities have been discovered in the Xorg Server and XWayland, the worst of which can result in privilege escalation or remote code execution. Versions greater than or equal to 21.1.11 are affected.
Red Hat Security Advisory 2024-0020-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.
Red Hat Security Advisory 2024-0018-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 8.
Red Hat Security Advisory 2024-0017-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions.
Red Hat Security Advisory 2024-0016-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions.
Red Hat Security Advisory 2024-0015-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.
Red Hat Security Advisory 2024-0014-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 8.8 Extended Update Support.
Red Hat Security Advisory 2024-0009-03 - An update for xorg-x11-server is now available for Red Hat Enterprise Linux 7.
Red Hat Security Advisory 2023-7886-03 - An update for tigervnc is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.
Debian Linux Security Advisory 5576-2 - The initial fix for CVE-2023-6377 as applied in DSA 5576-1 did not fully fix the vulnerability. Updated packages correcting this issue including the upstream merged commit are now available.
Ubuntu Security Notice 6555-2 - USN-6555-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled XKB button actions. An attacker could possibly use this issue to cause the X Server to crash, execute arbitrary code, or escalate privileges.
Ubuntu Security Notice 6555-1 - Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled XKB button actions. An attacker could possibly use this issue to cause the X Server to crash, execute arbitrary code, or escalate privileges. Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled memory when processing the RRChangeOutputProperty and RRChangeProviderProperty APIs. An attacker could possibly use this issue to cause the X Server to crash, or obtain sensitive information.
Debian Linux Security Advisory 5576-1 - Jan-Niklas Sohn discovered several vulnerabilities in the Xorg X server, which may result in privilege escalation if the X server is running privileged.