Bug 2339074 (CVE-2025-24014)

Summary: CVE-2025-24014 vim: segmentation fault in win_line() in Vim < 9.1.1043
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: kshier, omaciel, stcannon, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Vim. In silent Ex mode (-s -e), Vim typically doesn't show a screen and operates silently in batch mode, however, it is possible to trigger the function that handles the scrolling of a GUI version of Vim via binary characters. The function that handles the scrolling may trigger a redraw, which will access the ScreenLines pointer and can cause a segmentation fault condition. This may lead to an application crash or other undefined behavior.
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Description OSIDB Bzimport 2025-01-20 23:00:59 UTC 
Vim is an open source, command line text editor. A segmentation fault was found in Vim before 9.1.1043. In silent Ex mode (-s -e), Vim typically doesn't show a screen and just operates silently in batch mode. However, it is still possible to trigger the function that handles the scrolling of a gui version of Vim by feeding some binary characters to Vim. The function that handles the scrolling however may be triggering a redraw, which will access the ScreenLines pointer, even so this variable hasn't been allocated (since there is no screen). This vulnerability is fixed in 9.1.1043.