CVSS: 10.0EPSS: 7%CPEs: 7EXPL: 0CVE-2023-6816 – Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
https://notcve.org/view.php?id=CVE-2023-6816
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: 5.5EPSS: 0%CPEs: 15EXPL: 0CVE-2024-0408 – Xorg-x11-server: selinux unlabeled glx pbuffer
https://notcve.org/view.php?id=CVE-2024-0408
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: 0CVE-2024-0409 – Xorg-x11-server: selinux context corruption
https://notcve.org/view.php?id=CVE-2024-0409
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: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2023-1393 – X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-1393
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: 8EXPL: 0CVE-2022-4283 – X.Org Server XkbCopyNames Double Free Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-4283
14 Dec 2022 — 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 memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. Se encontró una vulnerabilidad en X.Org. Este fallo de seguridad se produce porque la función XkbCopyNames dejó un puntero colgante a ... • https://access.redhat.com/security/cve/CVE-2022-4283 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-14346 – X.Org Server XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14346
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: 0CVE-2020-14361 – X.Org Server XkbSelectEvents Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14361
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: 0CVE-2020-14362 – X.Org Server XRecordRegisterClients Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14362
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: 0CVE-2020-14347 – X.Org Server Pixel Data Uninitialized Memory Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2020-14347
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 •