Bug 2513060 (CVE-2026-19411)

Summary: CVE-2026-19411 shim/dp.c library: NULL-pointer dereference in is_removable_media_path() when DevicePathToStr() returns NULL
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A NULL pointer vulnerability has been found in the the shim application of dp.c library. A missing NULL pointer could allow attackers to perform a denial of service attack on a system that uses shim application for UEFI bootloader.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-10 09:32:58 UTC 
NULL-pointer dereference in `is_removable_media_path()`: when DevicePathToStr() returns `NULL` (e.g. on EFI pool-allocation failure), the result is passed directly to `StrnCaseCmp()`, which dereferences it on the first loop iteration and crashes. This is a 
robustness / defensive-hardening issue -- a missing NULL check on a boot-path helper, rather than an attacker-controlled memory-safety bug.