Double Free Affecting vim/vim package, versions [,9.1.0647)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-VIMVIM-7577999
- published2 Aug 2024
- disclosed1 Aug 2024
- creditSuyue Guo
Introduced: 1 Aug 2024
CVE-2024-41957 (opens in a new tab)How to fix?
Upgrade vim/vim to version 9.1.0647 or higher.
Overview
Affected versions of this package are vulnerable to Double Free due to the improper handling of memory in the tagstack data structure. An attacker can cause a crash of the application by manipulating the quickfix list after a window closure, leading to a double-free scenario.
Note:
This is only exploitable if the user executes Vim with several non-default flags.
PoC
/home/vim-debug/src/vim -u NONE -X -Z -e -s -S double_free -c ':qa!'