Heap-based Buffer Overflow The advisory has been revoked - it doesn't affect any version of package vim  (opens in a new tab)


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  • Snyk IDSNYK-CENTOS9-VIM-7925597
  • published10 Sept 2024
  • disclosed22 Aug 2024

Introduced: 22 Aug 2024

CVE-2024-43790  (opens in a new tab)
CWE-122  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vim package and not the vim package as distributed by Centos.

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.