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Mesa 23.0.4 was discovered to contain a NULL pointer dereference in check_xshm() for the has_error state. NOTE: this is disputed because there is no scenario in which the vulnerability was demonstrated.

CVE-2023-45931 identifies a NULL pointer dereference vulnerability in the Mesa 23.0.4 graphics library, specifically within the check_xshm() function when handling the has_error state. Mesa is a widely used open-source implementation of the OpenGL specification, providing graphics rendering capabilities on Linux and Unix-like systems. The vulnerability is categorized under CWE-476 (NULL Pointer Dereference), which can lead to application crashes or denial of service conditions. The CVSS 3.1 base score is 7.5, indicating high severity, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and impact limited to availability (A:H) without affecting confidentiality or integrity. Despite this, the vulnerability's existence is disputed because no concrete exploitation scenario has been demonstrated, and no known exploits are currently available. The lack of patches or fixes at the time of publication suggests that users should remain vigilant. The vulnerability could be triggered remotely without authentication, potentially causing the graphics subsystem or dependent applications to crash, leading to denial of service. This is particularly relevant for systems relying on Mesa for graphical operations, including servers with graphical interfaces or workstations running Linux distributions that incorporate this library.

Detailed information about CVE-2023-45931: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2023-45931: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-45931: n/a

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