CVE-2022-23636 is a high-severity bug in the Wasmtime WebAssembly runtime (versions prior to 0.34.1 and 0.33.1) affecting the pooling instance allocator. It can lead to an invalid memory write (CWE-824) when failing to instantiate a module defining an 'externref' global, potentially resulting in high impact to confidentiality, integrity, and availability. While the CVSS score is 8.1 (High), exploitation requires specific conditions and the use of 'externref' is currently uncommon. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.33.1CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
0.34.0CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:0.34.0:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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