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Vim < 9.2.1309 Heap Buffer Overflow with Crafted Spell File

Original title: [vim-security]: Heap Buffer Overflow with Crafted Spell File in Vim < 9.2.1309

oss-security ()
AI summary · x-ai/grok-4.7Summaries by Vani AI

Crafted spell file causes Vim to treat SN_SOFO sections as SN_SAL items leading to out-of-bounds read.

A crafted spell file containing two SN_SOFO sections causes Vim to free the soundfolding items of the first section as if they were SN_SAL items. This results in heap buffer overflow and out-of-bounds read. The issue is rated low severity with CVE requested but not assigned.

Unconfirmed: CVE requested but not yet assigned

Key facts
  • SN_SOFO sections mishandled in spell files
  • CWE-843 and CWE-125 apply
  • Out-of-bounds read occurs
  • Severity: Low
Security assessment · AI, from the articleNo known exploitation

Impact: out-of-bounds read via crafted spell file

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From the original article

Posted by Christian Brabandt on Nov 08 Heap Buffer Overflow with Crafted Spell File in Vim < 9. 2. 1309 ============================================================== Date: 08.

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.