Vim < v9.1.0648 has a double-free in dialog_changed()

Vim is an open source command line text editor. double-free in dialog_changed() in Vim < v9.1.0648. When abandoning a buffer, Vim may ask the user what to do with the modified buffer. If the user wants the changed buffer to be saved, Vim may create a new Untitled file, if the buffer did not have a name yet. However, when setting the buffer name to Unnamed, Vim will falsely free a pointer twice, leading to a double-free and possibly later to a heap-use-after-free, which can lead to a crash. The issue has been fixed as of Vim patch v9.1.0648.

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

释放后使用

Vim 安全漏洞

Vim是Vim开源的一款跨平台的文本编辑器。 Vim v9.1.0648之前版本存在安全漏洞，该漏洞源于存在双重释放。

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