p PatchFirst

PatchFirst · Aktuelle Sicherheitslücken

Sicherheitslücken in xwayland · Seite 3

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für xwayland: 12. Davon im KEV-Katalog: 0.

Sicherheitslücken filtern
Filter zurücksetzen

Sicherheitslücken: 54

  1. CVE-2025-26599

    Hoch · CVSS 7.8EPSS 0,4%Korrektur verfügbar

    Xorg: xwayland: use of uninitialized pointer in compredirectwindow()

    An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.

    • Auf 2:23.2.6-1ubuntu0.4 aktualisieren
    Veröffentlicht Aktualisiert
  2. CVE-2025-26598

    Hoch · CVSS 7.8EPSS 0,4%Korrektur verfügbar

    Xorg: xwayland: out-of-bounds write in createpointerbarrierclient()

    An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access.

    • Auf 2:23.2.6-1ubuntu0.4 aktualisieren
    Veröffentlicht Aktualisiert
  3. CVE-2025-26597

    Hoch · CVSS 7.8EPSS 0,44%Korrektur verfügbar

    Xorg: xwayland: buffer overflow in xkbchangetypesofkey()

    A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.

    • Auf 2:23.2.6-1ubuntu0.4 aktualisieren
    Veröffentlicht Aktualisiert
  4. CVE-2025-26595

    Hoch · CVSS 7.8EPSS 0,44%Korrektur verfügbar

    Xorg: xwayland: buffer overflow in xkbvmodmasktext()

    A buffer overflow flaw was found 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 would copy the data regardless of the size.

    • Auf 2:23.2.6-1ubuntu0.4 aktualisieren
    Veröffentlicht Aktualisiert
  5. CVE-2025-26594

    Hoch · CVSS 7.8EPSS 0,39%Korrektur verfügbar

    X.org: xwayland: use-after-free of the root cursor

    A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.

    • Auf 2:23.2.6-1ubuntu0.4 aktualisieren
    Veröffentlicht Aktualisiert
  6. CVE-2024-9632

    Hoch · CVSS 7.8EPSS 0,9%Korrektur verfügbar

    Xorg-x11-server: tigervnc: heap-based buffer overflow privilege escalation vulnerability

    A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation in distributions where the X.org server is run with root privileges.

    • Auf 2:23.2.6-1ubuntu0.1 aktualisieren
    Veröffentlicht Aktualisiert
  7. CVE-2024-21886

    Hoch · CVSS 7.8EPSS 1,42%Korrektur verfügbar

    Xorg-x11-server: heap buffer overflow in disabledevice

    A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

    • Auf 2:23.2.4-1 aktualisieren
    Veröffentlicht Aktualisiert
  8. CVE-2024-21885

    Hoch · CVSS 7.8EPSS 1,42%Korrektur verfügbar

    Xorg-x11-server: heap buffer overflow in xisenddevicehierarchyevent

    A flaw was found in 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 trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.

    • Auf 2:23.2.4-1 aktualisieren
    Veröffentlicht Aktualisiert
  9. CVE-2024-0229

    Hoch · CVSS 7.8EPSS 1,23%Korrektur verfügbar

    Xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access

    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 is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

    • Auf 2:23.2.4-1 aktualisieren
    Veröffentlicht Aktualisiert
  10. CVE-2024-0409

    Hoch · CVSS 7.8EPSS 0,36%Korrektur verfügbar

    Xorg-x11-server: selinux context corruption

    A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.

    • Auf 2:23.2.4-1 aktualisieren
    Veröffentlicht Aktualisiert
  11. CVE-2024-0408

    Mittel · CVSS 5.5EPSS 0,32%Korrektur verfügbar

    Xorg-x11-server: selinux unlabeled glx pbuffer

    A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.

    • Auf 2:23.2.4-1 aktualisieren
    Veröffentlicht Aktualisiert
  12. CVE-2023-6816

    Kritisch · CVSS 9.8EPSS 2,11%Korrektur verfügbar

    Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer

    A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.

    • Auf 2:23.2.4-1 aktualisieren
    Veröffentlicht Aktualisiert
  13. CVE-2023-5367

    Hoch · CVSS 7.8EPSS 0,61%Korrektur verfügbar

    Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty

    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 when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.

    • Auf 2:23.2.0-1ubuntu0.1 aktualisieren
    Veröffentlicht Aktualisiert

Prüfen Sie Ihren Server

Gleichen Sie Ihren installierten Stack und seine Versionen mit den aktuellen Sicherheitsmeldungen ab.

Prüfen Sie Ihren Server →