xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Data Leak in XFIXES Extension's XFixesSetClientDisconnectMode

A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests...

xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension

A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check...

X.Org X server, XWayland: Multiple Vulnerabilities

Background The X Window System is a graphical windowing system based on a client/server model. Description Multiple vulnerabilities have been discovered in X.Org X server and XWayland. Please review the CVE identifiers referenced below for details. Impact Please review the referenced CVE...

CVE-2022-34568

SDL v1.2 was discovered to contain a use-after-free via the XFree function at /src/video/x11/SDLx11yuv.c...

xorg: xwayland: Heap overflow in XkbWriteKeySyms()

A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms differs from what is written in XkbWriteKeySyms, which may lead to a heap-based buffer overflow...

X.Org: Xwayland: Use-after-free of the root cursor

A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free...

xorg: xwayland: Use of uninitialized pointer in compRedirectWindow()

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow will return a BadAlloc error without validating the window tree marked just before, which leaves the...

xorg: xwayland: Buffer overflow in XkbChangeTypesOfKey()

A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because t...

Moderate: Red Hat Security Advisory: xorg-x11-server security update

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

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

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 serv...

ALSA-2025:7427 Low: xterm security update

The xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can't use the window system directly. Security Fixes: xterm: code execution via OSC 50 input sequences CVE-2022-45063 For more details about the securi...

Low: xterm security update

The xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can't use the window system directly. Security Fixes: xterm: code execution via OSC 50 input sequences CVE-2022-45063 For more details about the securi...

OESA-2025-1482 gimp security update

The GIMP is an image composition and editing program, which can be used for creating logos and other graphics for Web pages. The GIMP offers many tools and filters, and provides a large image manipulation toolbox, including channel operations and layers, effects, subpixel imaging and antialiasing...

Do Not Install the X Window System

X Window System X for short provides a GUI for users to log in and perform operations in Linux. Generally, servers do not require a GUI. Administrators can configure and modify a server through the CLI. X SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a...

SUSE CVE-2025-2760

GIMP XWD File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a...

Xorg: xwayland: Buffer overflow in XkbVModMaskText()

A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size...

The vulnerability of the compRedirectWindow() function in the Wayland protocol for X.Org XWayland, which is implemented in the X Window System X.Org Server, allows a attacker to execute arbitrary code.

The vulnerability of the compRedirectWindow function in the Wayland protocol for X.Org XWayland, which is part of the X Window System X.Org Server, relates to access to an uninitialized pointer. Exploiting this vulnerability could allow a attacker to execute arbitrary code...

UBUNTU-CVE-2025-32728

In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding...

The vulnerability in the dix/devices.c component of the X Window System X.Org Server allows a perpetrator to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the dix/devices.c component in the X Window System X.Org Server implementation is related to improper resource locking. Exploiting this vulnerability can allow an attacker to gain access to confidential data, compromise its integrity, and cause service failures...

USN-7299-4 xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 regression

USN-7299-2 fix vulnerabilities in X.Org X Server. This fix caused a regression in Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. This update fix the regression and re-apply the fix for the CVE listed. We apologize for the inconvenience. Original advisory details: Jan-Niklas Sohn discovered that the X.Org...