Bug 2423928 (CVE-2025-14957) - CVE-2025-14957 binaryen: NULL pointer dereference in wasm::Function::getLocalType() when processing a malformed WebAssembly binary
Summary: CVE-2025-14957 binaryen: NULL pointer dereference in wasm::Function::getLocal...
Keywords:
Status: NEW
Alias: CVE-2025-14957
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-19 18:01 UTC by OSIDB Bzimport
Modified: 2025-12-19 19:43 UTC (History)
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Description OSIDB Bzimport 2025-12-19 18:01:39 UTC 
A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 6fb2b917a79578ab44cf3b900a6da4c27251e0d4. Applying a patch is advised to resolve this issue.
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