RHSA-2026:19344 Red Hat Security Advisory: xorg-x11-server-Xwayland security update

Bulletin has no description...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-x11-server in versions prior to 21.1.2 and prior to 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The greatest threat posed by this vulnerability is related to data confidentiality and integrity, as well as system availability...

xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

ALSA-2026:19125 Important: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling CVE-2026-33999 xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential...

Alibaba Cloud Linux 3 : 0105: xorg-x11-server-Xwayland (ALINUX3-SA-2026:0105)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0105 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-33999: A flaw was found in the...

CLSA-2026-1778069531 xorg-x11-server-Xwayland: Fix of 3 CVEs

CVE fix for: CVE-2026-33999, CVE-2026-34001, CVE-2026-34003...

CVE-2026-34001 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4

CVE-2026-34001 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4. A patched version of the package is available...

CVE-2026-33999 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4

CVE-2026-33999 affecting package xorg-x11-server-Xwayland for versions less than 24.1.6-4. A patched version of the package is available...

Oracle Linux 8 : tigervnc (ELSA-2026-13414)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-13414 advisory. - Fix CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003 xorg-x11-server: various XKB and XSYNC vulnerabilities Resolves:...

OESA-2026-2142 xorg-x11-server-xwayland security update

Xwayland is an X server for running X clients under Wayland. %package devel Summary: Development package Requires: pkgconfig %description devel The development package provides the developmental files which are necessary for developing Wayland compositors using Xwayland. %prep %autosetup -n...

xorg-x11-server-Xwayland security update

An update is available for xorg-x11-server-Xwayland. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Xwayland is an X server for running X clients under Wayland...

RHSA-2026:11656 Red Hat Security Advisory: xorg-x11-server-Xwayland security update

Bulletin has no description...

Important: xorg-x11-server

Issue Overview: XKB Integer Underflow in XkbSetCompatMap CVE-2026-33999 XSYNC Use-after-free in miSyncTriggerFence CVE-2026-34001 XKB Out-of-bounds read in CheckModifierMap CVE-2026-34002 XKB Buffer overflow in CheckKeyTypes CVE-2026-34003 Affected Packages: xorg-x11-server Note: This advisory is...

Amazon Linux 2 : xorg-x11-server, --advisory ALAS2-2026-3268 (ALAS-2026-3268)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3268 advisory. XKB Integer Underflow in XkbSetCompatMap CVE-2026-33999 XSYNC Use-after-free in miSyncTriggerFence CVE-2026-34001 XKB Out-of-bounds read in CheckModifierMap CVE-2026-34002 XKB Buffer overflow in...

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

An update for xorg-x11-server is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabilit...

xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of servi...

RHSA-2026:11388 Red Hat Security Advisory: xorg-x11-server security update

Bulletin has no description...

Oracle Linux 9 : xorg-x11-server-Xwayland (ELSA-2026-11369)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-11369 advisory. 23.2.7-6 - CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001 CVE-2026-34002, CVE-2026-34003 Resolves:...

Oracle Linux 9 : xorg-x11-server (ELSA-2026-11388)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-11388 advisory. 1.20.11-33 - CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001 CVE-2026-34002, CVE-2026-34003 Resolves:...

xorg-x11-server-Xwayland security update

24.1.5-6 - CVE fix for: CVE-2026-33999, CVE-2026-34000, CVE-2026-34001 CVE-2026-34002, CVE-2026-34003 Resolves: https://redhat.atlassian.net/browse/RHEL-163188 Resolves: https://redhat.atlassian.net/browse/RHEL-163284 Resolves: https://redhat.atlassian.net/browse/RHEL-163242...