Description (CNA)
Wasmtime is a standalone runtime for WebAssembly. Prior to versions 2.0.2 and 1.0.2, 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 and 1.0.2. Other mitigations include disabling the pooling allocator and disabling the `memory-init-cow`.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| bytecodealliance / wasmtime | affected >= 2.0.0, < 2.0.2; affected < 1.0.2 |
CWE
CWE-226
References
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wh6w-3828-g9qf
- https://github.com/bytecodealliance/wasmtime/commit/2614f2e9d2d36805ead8a8da0fa0c6e0d9e428a0
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.