Use After Free Affecting vim package, versions <2:9.0.2116-1ubuntu2


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-UBUNTU2404-VIM-6696877
  • published29 Apr 2024
  • disclosed22 Nov 2023

Introduced: 22 Nov 2023

CVE-2023-48706  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Ubuntu:24.04 vim to version 2:9.0.2116-1ubuntu2 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 Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a :s command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive :s call causes free-ing of memory which may later then be accessed by the initial :s command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.

CVSS Scores

version 3.1