Bug 2455268 (CVE-2019-25656)

Summary: CVE-2019-25656 R: R: Arbitrary code execution via buffer overflow in GUI Preferences
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: bbrownin, sdawley
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in R. A local attacker can exploit a buffer overflow vulnerability in the GUI Preferences dialog by supplying malicious input to the 'Language for menus and messages' field. This can lead to a structured exception handler (SEH) overwrite, allowing the attacker to achieve arbitrary code execution.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-04-05 21:03:25 UTC
R i386 3.5.0 contains a local buffer overflow vulnerability in the GUI Preferences dialog that allows local attackers to trigger a structured exception handler (SEH) overwrite by supplying malicious input. Attackers can craft a payload string in the 'Language for menus and messages' field to overwrite SEH records and achieve code execution with calculator or arbitrary shellcode.