
CVE-2023-43785 – Libx11: out-of-bounds memory access in _xkbreadkeysyms()
https://notcve.org/view.php?id=CVE-2023-43785
04 Oct 2023 — A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system. Se encontró una vulnerabilidad en libX11 debido a una condición de los límite dentro de la función _XkbReadKeySyms(). Esta falla permite a un usuario local desencadenar un error de lectura fuera de los límites y leer el contenido de la memoria del sistema. Gregory James Duck discovered that l... • https://access.redhat.com/errata/RHSA-2024:2145 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVE-2023-43786 – Libx11: stack exhaustion from infinite recursion in putsubimage()
https://notcve.org/view.php?id=CVE-2023-43786
04 Oct 2023 — A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition. Se encontró una vulnerabilidad en libX11 debido a un bucle infinito dentro de la función PutSubImage(). Esta falla permite que un usuario local consuma todos los recursos disponibles del sistema y provoque una condición de denegación de servicio. Yair Mizrahi discovered that libXpm incorrectly handled c... • https://github.com/jfrog/jfrog-CVE-2023-43786-libX11_DoS • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2023-43787 – Libx11: integer overflow in xcreateimage() leading to a heap overflow
https://notcve.org/view.php?id=CVE-2023-43787
04 Oct 2023 — A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges. Se encontró una vulnerabilidad en libX11 debido a un desbordamiento de enteros dentro de la función XCreateImage(). Esta falla permite a un usuario local desencadenar un desbordamiento de enteros y ejecutar código arbitrario con privilegios elevados. Yair Mizrahi discovered that libXpm incorrectly ... • http://www.openwall.com/lists/oss-security/2024/01/24/9 • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound •

CVE-2023-3138 – libX11: InitExt.c can overwrite unintended portions of the Display structure if the extension request leads to a buffer overflow
https://notcve.org/view.php?id=CVE-2023-3138
16 Jun 2023 — A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, a... • https://access.redhat.com/security/cve/CVE-2023-3138 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVE-2021-31535 – libX11: missing request length checks
https://notcve.org/view.php?id=CVE-2021-31535
21 May 2021 — LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests a... • https://packetstorm.news/files/id/162737 • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVE-2020-14363 – libX11: integer overflow leads to double free in locale handling
https://notcve.org/view.php?id=CVE-2020-14363
28 Aug 2020 — An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability. Se encontró una vulnerabilidad de desbordamiento de enteros conllevando a una doble liberación en libX11. Este fallo permite a un atacante privilegiado local causar que una a... • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363 • CWE-190: Integer Overflow or Wraparound CWE-416: Use After Free •

CVE-2020-14344 – libX11: Heap overflow in the X input method client
https://notcve.org/view.php?id=CVE-2020-14344
05 Aug 2020 — An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux. Se encontró un desbordamiento de enteros conllevando a un desbordamiento del búfer de la pila en el cliente X Input Method (XIM), se implementó en libX11 anterior a la versión... • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00014.html • CWE-190: Integer Overflow or Wraparound •

CVE-2018-14598 – libX11: Crash on invalid reply in XListExtensions in ListExt.c
https://notcve.org/view.php?id=CVE-2018-14598
21 Aug 2018 — An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault). Se ha descubierto un problema en XListExtensions en ListExt.c en libX11 hasta la versión 1.6.5. Un servidor malicioso puede enviar una respuesta en la cual la primera cadena se desborda, provocando que una variable se establezca como NULL y se libere post... • http://www.openwall.com/lists/oss-security/2018/08/21/6 • CWE-20: Improper Input Validation •

CVE-2018-14599 – libX11: Off-by-one error in XListExtensions in ListExt.c
https://notcve.org/view.php?id=CVE-2018-14599
21 Aug 2018 — An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact. Se ha descubierto un problema en libX11 hasta su versión 1.6.5. La función XListExtensions en ListExt.c es vulnerable a un error por un paso provocado por respuestas maliciosas del servidor, lo que conduce a una denegación de servicio (DoS) o a otro tipo de impacto sin especificar. An off-by-... • http://www.openwall.com/lists/oss-security/2018/08/21/6 • CWE-193: Off-by-one Error CWE-787: Out-of-bounds Write •

CVE-2018-14600 – libX11: Out of Bounds write in XListExtensions in ListExt.c
https://notcve.org/view.php?id=CVE-2018-14600
21 Aug 2018 — An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution. Se ha descubierto un problema en libX11 hasta su versión 1.6.5. La función XListExtensions en ListExt.c interpreta una variable como firmada en lugar de no firmada, lo que resulta en una escritura fuera de límites (de hasta 128 bytes), lo que conduce a una denegación d... • http://www.openwall.com/lists/oss-security/2018/08/21/6 • CWE-787: Out-of-bounds Write •