CVE-2026-55693: vim, грешка в паметта

Описание

Оригинално описание

Vim is an open source, command line text editor. Prior to 9.2.0653, the tree_count_words() function in src/spellfile.c fills in the word-count fields of a spell-file word trie by walking it iteratively with a depth counter. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (arridx[], curi[], wordcount[]). A crafted .spl/.sug file pair, loaded when the user invokes spell suggestion, can drive the descent arbitrarily deep, so the function writes past the end of those arrays. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0653.

Засегнати продукти

• vim vim: < 9.2.0653

Вид слабост

• CWE-787 Out-of-bounds Write

История

Други уязвимости в vim vim

• 7.8CVE-2026-43961
• 7.1CVE-2026-73073
• 8.6CVE-2026-73078
• 8.4CVE-2026-73077
• 8.4CVE-2026-73076

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-55693
• https://nvd.nist.gov/vuln/detail/CVE-2026-55693
• https://github.com/vim/vim/security/advisories/GHSA-wgh4-64f7-q3jq
• https://github.com/vim/vim/commit/a80874d9b84a01040e3d1aef2d4a59e1934dafb7
• https://github.com/vim/vim/releases/tag/v9.2.0653