Null pointer dereference in Xedit

[Meng Ruijie <ruijie_meng () u nus edu>]

[Vulnerability description]
A NULL pointer dereference in the component /X11/xedit/lisp of Xedit v1.2.3 allows attackers to cause a Denial of 
Service (DoS) via a crafted lisp.lsp file.

[VulnerabilityType Other]
null pointer deference

[Vendor of Product]
Xedit

[Affected Product Code Base]
Xedit - 1.2.3

[Reference]
https://gitlab.freedesktop.org/xorg/app/xedit/-/issues/1

[CVE Reference]
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2023-45916 to this 
vulnerability.
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