漏洞信息
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Vulnerability Title
Vim: Stack out-of-bounds write in `spell_soundfold_sofo()` via an over-length `soundfold()` argument
Vulnerability Description
Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0698.
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Vulnerability Type
跨界内存写
Vulnerability Title
Vim 缓冲区错误漏洞
Vulnerability Description
Vim是Vim组织开源的一款跨平台的文本编辑器。 Vim 9.2.0698之前版本存在缓冲区错误漏洞,该漏洞源于spell_soundfold_sofo()函数中存在栈越界写入问题,可能导致编辑器崩溃。
CVSS Information
N/A
Vulnerability Type
N/A