ROOT-OS-DEBIAN-11-CVE-2026-50261 CVE-2026-50261 in xorg-server - Patched by Root

Root has patched CVE-2026-50261 in the xorg-server package for Root:Debian:11. Multiple fixed versions available...

ROOT-OS-DEBIAN-11-CVE-2026-50264 CVE-2026-50264 in xorg-server - Patched by Root

Root has patched CVE-2026-50264 in the xorg-server package for Root:Debian:11. Multiple fixed versions available...

ROOT-OS-DEBIAN-11-CVE-2026-50256 CVE-2026-50256 in xorg-server - Patched by Root

Root has patched CVE-2026-50256 in the xorg-server package for Root:Debian:11. Multiple fixed versions available...

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 buffer overflow vulnerability was discovered 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 will copy the data regardless of the siz...

Astra Linux – Vulnerability in xorg-server

In the X.Org X Server versions 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, which is known as a race condition. Specifically, the AttachDevice function in...

Astra Linux – Vulnerability in xwayland, xorg-server

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

Astra Linux – Vulnerability in xorg-server

A out-of-bounds write flaw was discovered in the X.Org X server and Xwayland within DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger a out-of-bounds heap write. This vulnerability could be exploited to...

Astra Linux – Vulnerability in xorg-server

A stack-based buffer overflow vulnerability was discovered in the X.Org X server and Xwayland. A mismatch between the X server’s requirements and the maximum font name length supported by the libXfont2 library can lead to a stack buffer overflow during font alias resolution. The X server allocate...

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 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...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1763558418)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1763558418 advisory. - A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in...

AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel (ALMALINUX9.2:CLSA-2026:1784295645)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1784295645 advisory. - Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in the Xorg-x11-server. The specific flaw lies in the handling of ProcXkbSetDeviceInfo requests. The issue arises due to the lack of proper validation of user-provided data, which can lead to a memory access beyond the allocated buffer’s limit. This flaw allows an attacker t...

Astra Linux – Vulnerability in xorg-server, xwayland

A flaw related to accessing an uninitialized pointer was discovered in X.Org and Xwayland. The compCheckRedirect function may fail if it cannot allocate the backing pixmap. In such cases, compRedirectWindow will return a BadAlloc error without validating the window tree just before processing; as...

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 xorg-server

A vulnerability, which was classified as problematic, has been identified in the X.org Server. The affected component is the function ProcXkbGetKbdByName in the file xkb/xkb.c. This vulnerability causes a memory leak. It is recommended that a patch be applied to address this issue. The identifier...

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 SProcScreenSaverSuspend function. The greatest threat posed by this vulnerability is related to data confidentiality and integrity, as well as system availability...

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...

Astra Linux – Vulnerability in xorg-server, xwayland

A flaw was discovered in the X.org server. Due to an improperly tracked allocation size in XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition through a specially crafted payload. This could lead to denial of service or local privilege escalation in distributions...