AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1763647564)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1763647564 advisory. - An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab...

AlmaLinux 9.2 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1744213437)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1744213437 advisory. - A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1777886414)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1777886414 advisory. - A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling,...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1764027165)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1764027165 advisory. - A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel (ALMALINUX9.2:CLSA-2026:1790073567)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1790073567 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...

AlmaLinux 9.2 [TuxCare] Security Update: tigervnc / tigervnc-icons / tigervnc-license / tigervnc-selinux / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1744632481)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1744632481 advisory. - A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration a...

Security Bulletin: Vulnerabilities in xorg-x11-server library (CVE-2026-50256, CVE-2026-50257, CVE-2026-50258, CVE-2026-50264, CVE-2026-59083, CVE-2026-55999) affect Power HMC.

Summary The xorg-x11-server is used by Power Hardware Management Console HMC. HMC has addressed the applicable CVEs. Vulnerability Details CVEID:CVE-2026-55999 DESCRIPTION: Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: xorg-x11-server (UTSA-2023-000014)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-000014 advisory. A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: xorg-x11-server (UTSA-2026-054038)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-054038 advisory. A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: xorg-x11-server (UTSA-2023-000009)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-000009 advisory. A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has a length-validation issues, resulting in...

EulerOS 2.0 SP10 : xorg-x11-server (EulerOS-SA-2026-3775)

According to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter. A client that sets up multiple SyncCounters and awaits...

EulerOS 2.0 SP10 : xorg-x11-server (EulerOS-SA-2026-3728)

According to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter. A client that sets up multiple SyncCounters and awaits...

Astra Linux – Vulnerability in xwayland, xorg-server

A flaw was discovered in the handling of animated cursors by the X Rendering extension. If a client does not provide any cursors, the server assumes that at least one is present. This can lead to an out-of-bounds read and potential crash...

Astra Linux – Vulnerability in xorg-server, xwayland

A buffer overflow vulnerability was discovered in X.Org and Xwayland. If the XkbChangeTypesOfKey function is called with a value of 0 for the “groups” parameter, it will resize the key symbol table to 0, but leave the key actions unchanged. If the same function is called later with a non-zero val...

Astra Linux – Vulnerability in xwayland, xorg-server

A flaw was discovered in the Big Requests extension. The length of the request is multiplied by 4 before checking against the maximum allowed size, which may lead to an integer overflow and bypassing the size check...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges escalation on systems where the X server is running with privileged access, and may...

Astra Linux – Vulnerability in xorg-server

A use-after-free flaw was discovered in the X.Org X server and Xwayland in the CreateSaverWindow function. A client can trigger a use-after-free error after changing window attributes and forcing the screen saver, resulting in information disclosure...

Astra Linux – Vulnerability in xwayland, xorg-server

A flaw was discovered in the X server’s request handling. A non-zero value for “bytes to ignore” in a client’s request can cause the server to skip processing another client’s request, potentially leading to a denial of service...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in the X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can lead to a heap buffer overflow condition, which may result in an application...

Astra Linux – Vulnerability in xwayland, xorg-server

A flaw was discovered in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when calculating the request length, allowing a client to bypass the length checks...