CVE-2024-43790 Affecting vim package, versions <9.1.0689-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-VIM-7830307
  • published24 Aug 2024
  • disclosed22 Aug 2024

Introduced: 22 Aug 2024

CVE-2024-43790  (opens in a new tab)

How to fix?

Upgrade Chainguard vim to version 9.1.0689-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vim package and not the vim package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Vim is an open source command line text editor. When performing a search and displaying the search-count message is disabled (:set shm+=S), the search pattern is displayed at the bottom of the screen in a buffer (msgbuf). When right-left mode (:set rl) is enabled, the search pattern is reversed. This happens by allocating a new buffer. If the search pattern contains some ASCII NUL characters, the buffer allocated will be smaller than the original allocated buffer (because for allocating the reversed buffer, the strlen() function is called, which only counts until it notices an ASCII NUL byte ) and thus the original length indicator is wrong. This causes an overflow when accessing characters inside the msgbuf by the previously (now wrong) length of the msgbuf. The issue has been fixed as of Vim patch v9.1.0689.

CVSS Scores

version 3.1