CVE-2022-39393
Wasmtime vulnerable to data leakage between instances in the pooling allocator
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Wasmtime 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`.
Wasmtime es una ejecución independiente de WebAssembly. Antes de la versión 2.0.2, había un error en la implementación de Wasmtime de su asignador de instancias de pooling donde, cuando se reutiliza una memoria lineal para otra instancia, la instantánea de la pila inicial de la instancia anterior puede ser visible, erróneamente, para la siguiente instancia. Este error ha sido corregido y los usuarios deben actualizar a Wasmtime 2.0.2. Otras mitigaciones incluyen deshabilitar el asignador de instancias de pooling y deshabilitar la "memory-init-cow".
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-09-02 CVE Reserved
- 2022-11-10 CVE Published
- 2024-06-02 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer
- CWE-226: Sensitive Information in Resource Not Removed Before Reuse
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wh6w-3828-g9qf | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/bytecodealliance/wasmtime/commit/2614f2e9d2d36805ead8a8da0fa0c6e0d9e428a0 | 2022-11-17 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Bytecodealliance Search vendor "Bytecodealliance" | Wasmtime Search vendor "Bytecodealliance" for product "Wasmtime" | < 1.0.2 Search vendor "Bytecodealliance" for product "Wasmtime" and version " < 1.0.2" | rust |
Affected
| ||||||
| Bytecodealliance Search vendor "Bytecodealliance" | Wasmtime Search vendor "Bytecodealliance" for product "Wasmtime" | >= 2.0.0 < 2.0.2 Search vendor "Bytecodealliance" for product "Wasmtime" and version " >= 2.0.0 < 2.0.2" | rust |
Affected
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