Bug 2349561 (CVE-2025-27423)

Summary: CVE-2025-27423 vim: Improper Input Validation in Vim
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: adudiak, kshier, omaciel, stcannon, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in the tar.vim plugin of Vim. This vulnerability allows arbitrary command execution via specially crafted tar archives that exploit the unsanitized :read ex command.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2349738, 2349739    
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Description OSIDB Bzimport 2025-03-03 17:01:45 UTC
Vim is an open source, command line text editor. Vim is distributed with the tar.vim plugin, that allows easy editing and viewing of (compressed or uncompressed) tar files. Starting with 9.1.0858, the tar.vim plugin uses the ":read" ex command line to append below the cursor position, however the is not sanitized and is taken literally from the tar archive. This allows to execute shell commands via special crafted tar archives. Whether this really happens, depends on the shell being used ('shell' option, which is set using $SHELL). The issue has been fixed as of Vim patch v9.1.1164