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Use After Free Affecting vim-data package, versions <2:9.0.2153-1.amzn2.0.1

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.05% (18th percentile)
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NVD
4.7 medium
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SUSE
3.6 low
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Red Hat
4.7 medium

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  • Snyk ID SNYK-AMZN2-VIMDATA-6371016
  • published 5 Mar 2024
  • disclosed 22 Nov 2023
Report a new vulnerability Found a mistake?

Introduced: 22 Nov 2023

CVE-2023-48706 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 vim-data to version 2:9.0.2153-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2024-2452.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vim-data package and not the vim-data package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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.