INFSA-2025:19434: xorg-x11-server security update

Information about definition

Identificator: INFSA-2025:19434

Type: security

Release date: 2025-11-11 15:22:20 UTC

Information about package

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.

Vulnerabilities description

  • CVE-2025-62229

    A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition. This can cause memory corruption or a crash, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

  • CVE-2025-62230

    A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.

  • CVE-2025-62231

    A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the value calculation may overflow, leading to memory corruption or a crash.

Severity level

CVE Score CVSS 2.0 Score CVSS 3.x Score CVSS 4.0
no information 7.3 no information
no information 7.3 no information
no information 7.3 no information
Critical, important, moderate, low

Updated packages

loader icon Preparing to download...
Architecture: Download