[Vulnerability description]
freedesktop Mesa v23.0.4 was discovered to contain a NULL pointer dereference via the function dri2GetGlxDrawableFromXDrawableId(). This vulnerability is triggered when the X11 server sends an DRI2_BufferSwapComplete event unexpectedly when the application is using DRI3.

[VulnerabilityType Other]
null pointer deference

[Vendor of Product]
freedesktop

[Affected Product Code Base]
Mesa - 23.0.4

[Reference]
https://gitlab.freedesktop.org/mesa/mesa/-/issues/9856

[CVE Reference]
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2023-45913 to this vulnerability.