Important: Red Hat Security Advisory: xorg-x11-server-Xwayland security update

An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds read/write in GLX ChangeDrawableAttributes

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapp...

AlmaLinux 8 : tigervnc (ALSA-2026:28923)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:28923 advisory. xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch...

RLSA-2026:26610 Important: xorg-x11-server security, bug fix, and enhancement update

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fixes: xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution du...

CVE-2026-50262

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapp...

OPENSUSE-SU-2026:20896-1 Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: - CreateSaverWindow Use-After-Free Information Disclosure. bsc1266301 - DRI2 DRIGetBuffers/DRIGetBuffersWithFormat Out-Of-Bounds Write. bsc1266302 - Font Alias Stack-based Buffer Overflow. bsc1266294 - GLX ChangeDrawableAttributes...

Medium: libglvnd

Issue Overview: libglxproto.c in OpenGL libglvnd bb06db5a was discovered to contain a segmentation violation via the function glXGetDrawableScreen. NOTE: this is disputed because there are no common situations in which users require uninterrupted operation with an attacker-controller server...

Security update for Mesa

This update for Mesa fixes the following issues: CVE-2023-45913: Fixed NULL pointer dereference via dri2GetGlxDrawableFromXDrawableId bsc1222040 CVE-2023-45919: Fixed buffer over-read in glXQueryServerString bsc1222041 CVE-2023-45922: Fixed segmentation violation in glXGetDrawableAttribute...

Security update for Mesa

This update for Mesa fixes the following issues: CVE-2023-45913: Fixed NULL pointer dereference via dri2GetGlxDrawableFromXDrawableId bsc1222040 CVE-2023-45919: Fixed buffer over-read in glXQueryServerString bsc1222041 CVE-2023-45922: Fixed segmentation violation in glXGetDrawableAttribute...

DEBIAN-CVE-2023-45924

libglxproto.c in OpenGL libglvnd bb06db5a was discovered to contain a segmentation violation via the function glXGetDrawableScreen. NOTE: this is disputed because there are no common situations in which users require uninterrupted operation with an attacker-controller server...

DEBIAN-CVE-2023-45913

Mesa v23.0.4 was discovered to contain a NULL pointer dereference via the function dri2GetGlxDrawableFromXDrawableId. This vulnerability is triggered when the X11 server sends an DRI2BufferSwapComplete event unexpectedly when the application is using DRI3. NOTE: this is disputed because there is ...

UBUNTU-CVE-2023-45913

DISPUTED Mesa v23.0.4 was discovered to contain a NULL pointer dereference via the function dri2GetGlxDrawableFromXDrawableId. This vulnerability is triggered when the X11 server sends an DRI2BufferSwapComplete event unexpectedly when the application is using DRI3. NOTE: this is disputed because...