CVE-2018-14665

CVE-2018-14665 0x00 Introducción El investigador de seguridad indio Narendra Shinde descubrió en el paquete X.Org Server una vulnerabilidad crítica que permite a una cuenta de usuario normal escalar privilegios hasta root CVE-2018-14665, que afecta a las principales distribuciones de Linux,...

CVE-2026-88812

A flaw was found in the X.Org X Server and XWayland. An error handling issue in the X Keyboard Extension XKB geometry processing fails to clear a memory pointer after an allocation failure, leading to a double-free condition during cleanup. A local user can exploit this vulnerability by sending a...

CVE-2026-93536

A flaw was found in the X.Org Server. When a window is removed during an active gesture, the server fails to clean up references to the destroyed window in its gesture tracking data. A local attacker can exploit this flaw to cause a use-after-free condition—where the system accesses memory after ...

xorg -- Multiple vulnerabilities

X.Org reports: Multiple issues have been found in the X server and Xwayland implementations published by X.Org for which we are releasing security fixes for in xorg-server-21.1.25 and xwayland-24.1.14. CVE-2026-88812: XKB SetGeometry TextDoodad Double Free CVE-2026-93515: Present Extension...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises due to issues with the length validation of the handler for the XIChangeProperty request, leading to out-of-bounds memory reads and potential information disclosure. This issue can result in elevation of local privileges on system...

Astra Linux – Vulnerability in xwayland, xorg-server

A flaw was discovered in the X.Org X server. This vulnerability, an out-of-bounds read, affects the handling of XKB X Keyboard Extension modifier maps. An attacker with access to the X11 server can exploit this by sending a malformed request, causing the server to read beyond its intended memory...

[SECURITY] Fedora 45 Update: libxkbcommon-1.13.1-4.fc45

libxkbcommon is the X.Org library for compiling XKB maps into formats usable by the X Server or other display servers...

CentOS Linux 7 [TuxCare] Security Update: xorg-x11-server-Xdmx / xorg-x11-server-Xephyr / etc Multiple Vulnerabilities (CENTOS7:CLSA-2025:1765223770)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2025:1765223770 advisory. - A flaw was found in the X.org server. Due to improperly tracked allocation size in XkbSetCompatMap, a local attacker may be able to...

Rocky Linux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1778003374)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778003374 advisory. - A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling...

Rocky Linux 9 [CIQ] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_19344)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202619344 advisory. 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:...

AlmaLinux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1782812906)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1782812906 advisory. - A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2...

AlmaLinux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1778003374)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778003374 advisory. - A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling,...

AlmaLinux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc (ALMALINUX9.6:CLSA-2026:1784103643)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784103643 advisory. - A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB X Keyboard Extension modifier map...

AlmaLinux 9.2 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1782904895)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1782904895 advisory. - A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2...

Rocky Linux 9.6 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel (ALMALINUX9.6:CLSA-2026:1790330410)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790330410 advisory. - A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the...

Rocky Linux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc (ALMALINUX9.6:CLSA-2026:1779497454)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1779497454 advisory. - A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the...

Rocky Linux 9.6 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1782224017)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1782224017 advisory. - A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfon...

CentOS Linux 7 [TuxCare] Security Update: xorg-x11-server-Xdmx / xorg-x11-server-Xephyr / etc Multiple Vulnerabilities (CENTOS7:CLSA-2026:1790585169)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2026:1790585169 advisory. - An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. A wrong size validation...

Rocky Linux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc (ALMALINUX9.6:CLSA-2026:1784103643)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784103643 advisory. - A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB X Keyboard Extension modifier map...

AlmaLinux 9.6 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc (ALMALINUX9.6:CLSA-2026:1779497454)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1779497454 advisory. - A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the...