
CVE-2021-4008 – X.Org Server SProcRenderCompositeGlyphs Out-Of-Bounds Access Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-4008
15 Dec 2021 — A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcRenderCompositeGlyphs function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se ha encontrado un fallo en xorg-x11-server en versiones anteriores a 21.1.2 y anteriores a 1.20.14. Puede producirse un acceso fuera de límites en la función SProcRenderCompositeGlyphs. • https://lists.debian.org/debian-lts-announce/2021/12/msg00035.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2021-3472 – X.Org Server XChangeFeedbackControl Integer Underflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-3472
14 Apr 2021 — A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. 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 en versiones anteriores a 1.20.11. Se puede producir un subdesbordamiento de enteros en xserver que puede conllevar a una escalada de privilegios local. • http://www.openwall.com/lists/oss-security/2021/04/13/1 • CWE-191: Integer Underflow (Wrap or Wraparound) •

CVE-2020-25712 – X.Org Server XkbSetDeviceInfo Heap-based Buffer Overflow Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-25712
07 Dec 2020 — A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo 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 xorg-x11-server versiones anteriores a 1.20.10. Un desbordamiento del búfer de la pila en la función XkbSetDeviceInfo puede causar una vulnerabilidad de escalada de privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1887276 • CWE-122: Heap-based Buffer Overflow •

CVE-2020-14360 – X.Org Server XkbSetMap Out-Of-Bounds Access Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14360
01 Dec 2020 — A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap function 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 el servidor X.Org anterior a la versión 1.20.10. Un acceso fuera de límites en la función XkbSetMap puede conllevar a una vulnerabilidad de escalada de privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1869139 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2020-14345 – X.Org Server XkbSetNames Out-Of-Bounds Access Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2020-14345
08 Sep 2020 — A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function 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 acceso fuera de límites en la función XkbSetNames puede conllevar a una vulnerabilidad de escalada de privilegios. • http://www.openwall.com/lists/oss-security/2021/01/15/1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2019-17624 – X.Org X Server 1.20.4 - Local Stack Overflow
https://notcve.org/view.php?id=CVE-2019-17624
16 Oct 2019 — "" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow. En X.Org X Server versión 1.20.4, se presenta un desbordamiento de búfer en la región stack de la memoria en la función XQueryKeymap. Por ejemplo, al enviar ct.c_char 1000 vec... • https://packetstorm.news/files/id/154868 • CWE-787: Out-of-bounds Write •

CVE-2011-4028 – xorg-x11-server: File existence disclosure vulnerability
https://notcve.org/view.php?id=CVE-2011-4028
03 Jul 2012 — The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists. La función LockServer en os/utils.c en xserver X.Org antes de v1.11.2 permite a los usuarios locales determinar la existencia de archivos (de su elección) a través de un ataque de enlace simbólico en un archivo de bloqueo temporal, que se maneja de manera diferente si el archivo ex... • http://cgit.freedesktop.org/xorg/xserver/commit/?id=6ba44b91e37622ef8c146d8f2ac92d708a18ed34 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •

CVE-2011-4029 – X.Org xorg 1.4 < 1.11.2 - File Permission Change
https://notcve.org/view.php?id=CVE-2011-4029
03 Jul 2012 — The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file. La función LockServer en os/utils.c en xserver X.Org antes de v1.11.2 permite a los usuarios locales cambiar los permisos de archivos de su elección a 444, leer los archivos, y posiblemente causar una denegación de servicio (por permiso... • https://www.exploit-db.com/exploits/18040 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVE-2007-6427 – xfree86: memory corruption via XInput extension
https://notcve.org/view.php?id=CVE-2007-6427
18 Jan 2008 — The XInput extension in X.Org Xserver before 1.4.1 allows context-dependent attackers to execute arbitrary code via requests related to byte swapping and heap corruption within multiple functions, a different vulnerability than CVE-2007-4990. La extensión XInput de X.Org Xserver versiones anteriores a 1.4.1 permite a atacantes locales o remotos dependientes del contexto ejecutar código de su elección mediante peticiones relativas al intercambio de bytes y corrupción de cabecera dentro d múltiples funciones,... • http://bugs.gentoo.org/show_bug.cgi?id=204362 • CWE-787: Out-of-bounds Write •