CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-43826 – Apache Guacamole: Integer overflow in handling of VNC image buffers
https://notcve.org/view.php?id=CVE-2023-43826
Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.5.4, which fixes this issue. Apache Guacamole 1.5.3 y anteriores no garantizan sistemáticamente que los valores recibidos de un servidor VNC no produzcan un desbordamiento de enteros. Si un usuario se conecta a un servidor VNC malicioso o comprometido, los datos especialmente manipulados podrían dañar la memoria, permitiendo posiblemente que se ejecute código arbitrario con los privilegios del proceso guacd en ejecución. Se recomienda a los usuarios actualizar a la versión 1.5.4, que soluciona este problema. • http://www.openwall.com/lists/oss-security/2023/12/19/4 https://lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6 • CWE-190: Integer Overflow or Wraparound •
CVSS: 8.1EPSS: 0%CPEs: 1EXPL: 0CVE-2023-30576 – Apache Guacamole: Use-after-free in handling of RDP audio input buffer
https://notcve.org/view.php?id=CVE-2023-30576
Apache Guacamole 0.9.10 through 1.5.1 may continue to reference a freed RDP audio input buffer. Depending on timing, this may allow an attacker to execute arbitrary code with the privileges of the guacd process. • https://lists.apache.org/thread/vgtvxb3w7mm84hx6v8dfc0onsoz05gb6 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2023-30575 – Apache Guacamole: Incorrect calculation of Guacamole protocol element lengths
https://notcve.org/view.php?id=CVE-2023-30575
Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data. • https://lists.apache.org/thread/tn63n2lon0h5p45oft834t1dqvvxownv • CWE-131: Incorrect Calculation of Buffer Size •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-41767 – Private tunnel identifier may be included in the non-private details of active connections
https://notcve.org/view.php?id=CVE-2021-41767
Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user's active use of that same connection. Apache Guacamole versiones 1.3.0 y anteriores, pueden incluir incorrectamente un identificador de túnel privado en los detalles no privados de algunas respuestas REST. Esto puede permitir que un usuario autenticado que ya presenta permiso para acceder a una conexión particular lea o interactúe con el uso activo de otro usuario de esa misma conexión • http://www.openwall.com/lists/oss-security/2022/01/11/6 https://lists.apache.org/thread/5l31k4jmzdsfz0xt8osrbl878gb3b7ro • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 0CVE-2020-11997
https://notcve.org/view.php?id=CVE-2020-11997
Apache Guacamole 1.2.0 and earlier do not consistently restrict access to connection history based on user visibility. If multiple users share access to the same connection, those users may be able to see which other users have accessed that connection, as well as the IP addresses from which that connection was accessed, even if those users do not otherwise have permission to see other users. Apache Guacamole versiones 1.2.0 y anteriores, no restringen constantemente el acceso al historial de conexiones según la visibilidad del usuario. Si múltiples usuarios comparten el acceso a la misma conexión, esos usuarios pueden ser capaz de visualizar qué otros usuarios han accedido a esa conexión, así como las direcciones IP desde las que se accedió a esa conexión, inclusive si esos usuarios no tienen permiso para visualizar otros usuarios • https://lists.apache.org/thread.html/r1a9ae9d1608c9f846875c4191cd738f95543d1be06b52dc1320e8117%40%3Cannounce.guacamole.apache.org%3E • CWE-276: Incorrect Default Permissions •