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.
A flaw was found in Vim, an open-source command-line text editor. A remote attacker could exploit this vulnerability by tricking a user into loading a specially crafted spell file. When the user invokes spell suggestion, the editor attempts to process the malicious file, leading to an out-of-bounds write that corrupts memory and causes the application to crash, resulting in a denial of service.
Отчет
This Moderate impact vulnerability in Vim's spell suggestion feature allows an attacker to cause a denial of service. By tricking a user into loading a specially crafted spell file and invoking spell suggestion, an out-of-bounds write can occur, leading to a crash of the editor. This requires user interaction and a malicious file, limiting its immediate exploitability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Not affected | ||
| Red Hat OpenShift Container Platform 5 | openshift/ose-rhel-coreos-9 | Affected | ||
| Red Hat Enterprise Linux 10 | vim | Fixed | RHSA-2026:48650 | 31.07.2026 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | vim | Fixed | RHSA-2026:55431 | 17.08.2026 |
| Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | vim | Fixed | RHSA-2026:69128 | 21.09.2026 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | vim | Fixed | RHSA-2026:68711 | 17.09.2026 |
| Red Hat Enterprise Linux 8 | vim | Fixed | RHSA-2026:48703 | 31.07.2026 |
| Red Hat Enterprise Linux 8 | vim | Fixed | RHSA-2026:48703 | 31.07.2026 |
| Red Hat Enterprise Linux 9 | vim | Fixed | RHSA-2026:47982 | 29.07.2026 |
| Red Hat Enterprise Linux 9 | vim | Fixed | RHSA-2026:47982 | 29.07.2026 |
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Дополнительная информация
Статус:
EPSS
7.3 High
CVSS3
Связанные уязвимости
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.
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.
Vim is an open source, command line text editor. Prior to 9.2.0653, th ...
EPSS
7.3 High
CVSS3