CVE-2022-39393
CVSS V2 None
CVSS V3 High 8.6
Description
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`.
Overview
- CVE ID
- CVE-2022-39393
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-11-10T20:15:11
- Last Modified Date
- 2022-11-17T16:01:15
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | 1 | OR | 1.0.2 | |
| cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | 1 | OR | 2.0.0 | 2.0.2 |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 8.6
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 4
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2022-39393 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-39393 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-11-10 21:00:13 | Added to TrackCVE | |||
| 2022-12-07 17:37:00 | 2022-11-10T20:15Z | 2022-11-10T20:15:11 | CVE Published Date | updated |
| 2022-12-07 17:37:00 | 2022-11-17T16:01:15 | CVE Modified Date | updated | |
| 2022-12-07 17:37:00 | Analyzed | Vulnerability Status | updated | |
| 2022-12-07 17:37:02 | CPE Information | updated |