40 results (0.027 seconds)

CVSS: 5.5EPSS: 0%CPEs: 15EXPL: 0

17 Jan 2024 — 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. Se encontró una falla en el servidor X.Org. El código GLX PBuffer no llama al gancho XACE al crear el bú... • https://access.redhat.com/errata/RHSA-2024:0320 • CWE-158: Improper Neutralization of Null Byte or NUL Character •

CVSS: 7.8EPSS: 0%CPEs: 15EXPL: 0

17 Jan 2024 — 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. Se encontró una falla en el servidor X.Org. El código del cursor tanto en Xephyr como en Xwayland utiliza el tipo incorrecto de privado en el momento de la creación. • https://access.redhat.com/errata/RHSA-2024:0320 • CWE-787: Out-of-bounds Write •

CVSS: 10.0EPSS: 1%CPEs: 7EXPL: 0

17 Jan 2024 — 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. Se encontró un fallo en el servidor X.Org. Tanto DeviceFocusEvent como la respuesta de XIQueryPointer contienen un bit para cada botón lógico actualmente presionado. • http://www.openwall.com/lists/oss-security/2024/01/18/1 • CWE-787: Out-of-bounds Write •

CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0

30 Mar 2023 — A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later. A vulnerability was found in X.Org Server. This flaw occurs if a client explicitly destroys the compositor overlay window (aka COW), where Xserver leaves a dangling pointer to that window in the CompScre... • https://gitlab.freedesktop.org/xorg/xserver/-/commit/26ef545b3502f61ca722a7a3373507e88ef64110 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0

02 Sep 2020 — A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en X.Org Server versiones anteriores a xorg-x11-server 1.20.9. Un subdesbordamiento de enteros que conlleva a un desbordamiento del búfer de la pila puede conllevar a una vulnerabilidad de escalada de pr... • https://bugzilla.redhat.com/show_bug.cgi?id=1869142 • CWE-191: Integer Underflow (Wrap or Wraparound) •

CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0

02 Sep 2020 — A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en xorg-x11-server versiones anteriores a 1.20.9. Un subdesbordamiento de enteros en la decodificación del protocolo de extensión de entrada X en el servidor X puede conllevar a un acceso ar... • https://bugzilla.redhat.com/show_bug.cgi?id=1862246 • CWE-191: Integer Underflow (Wrap or Wraparound) •

CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0

02 Sep 2020 — A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en X.Org Server versiones anteriores a xorg-x11-server 1.20.9. Un subdesbordamiento de enteros que conlleva a un desbordamiento del búfer de la pila puede conllevar a una vulnerabilidad de escalada de pr... • https://bugzilla.redhat.com/show_bug.cgi?id=1869144 • CWE-191: Integer Underflow (Wrap or Wraparound) •

CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0

04 Aug 2020 — A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. Se encontró un fallo en la manera en que la memoria de xserver no fue inicializada apropiadamente. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html • CWE-665: Improper Initialization •

CVSS: 7.2EPSS: 4%CPEs: 11EXPL: 21

25 Oct 2018 — A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges. Se ha descubierto un problema en versiones anteriores a la 1.20.3 de xorg-x11-server. Hay una comprobación incorrecta de permisos para las opciones -modulepath y -logfile al iniciar Xorg. • https://packetstorm.news/files/id/150295 • CWE-271: Privilege Dropping / Lowering Errors CWE-863: Incorrect Authorization •

CVSS: 9.8EPSS: 0%CPEs: 3EXPL: 0

17 Oct 2017 — xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code. xorg-x11-server en versiones anteriores a la 1.19.5 no tenía una validación de longitud en la extensión RENDER, lo que permitía que atacantes remotos permitan que el cliente malicioso X provoque que el servidor X se cierre inesperadamente o que, posiblemente, ejecute código arbitrario. It was discovered that the X.Org X server incorrectly ... • https://bugzilla.redhat.com/show_bug.cgi?id=1509217 • CWE-20: Improper Input Validation CWE-391: Unchecked Error Condition •