CVE-2022-39393

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Summary

CVECVE-2022-39393
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-11-10 20:15:00 UTC
Updated2022-11-17 16:01:00 UTC
DescriptionWasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime's implementation of its pooling instance allocator where when a linear memory is reused for another instance the initial heap snapshot of the prior instance can be visible, erroneously to the next instance. This bug has been patched and users should upgrade to Wasmtime 2.0.2. Other mitigations include disabling the pooling allocator and disabling the `memory-init-cow`.

Risk And Classification

Problem Types: CWE-212

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Bytecodealliance Wasmtime All All All All

References

ReferenceSourceLinkTags
Merge pull request from GHSA-wh6w-3828-g9qf · bytecodealliance/wasmtime@2614f2e · GitHub MISC github.com
Data leakage between instances in the pooling allocator · Advisory · bytecodealliance/wasmtime · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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