CVE-2022-39394

CVSS V2 None CVSS V3 Critical 9.8
Description
Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there is a bug in Wasmtime's C API implementation where the definition of the `wasmtime_trap_code` does not match its declared signature in the `wasmtime/trap.h` header file. This discrepancy causes the function implementation to perform a 4-byte write into a 1-byte buffer provided by the caller. This can lead to three zero bytes being written beyond the 1-byte location provided by the caller. This bug has been patched and users should upgrade to Wasmtime 2.0.2. This bug can be worked around by providing a 4-byte buffer casted to a 1-byte buffer when calling `wasmtime_trap_code`. Users of the `wasmtime` crate are not affected by this issue, only users of the C API function `wasmtime_trap_code` are affected.
Overview
  • CVE ID
  • CVE-2022-39394
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-11-10T20:15:11
  • Last Modified Date
  • 2022-11-16T13:31:56
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:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
History
Created Old Value New Value Data Type Notes
2022-11-10 21:00:13 Added to TrackCVE
2022-12-07 17:37:02 2022-11-10T20:15Z 2022-11-10T20:15:11 CVE Published Date updated
2022-12-07 17:37:02 2022-11-16T13:31:56 CVE Modified Date updated
2022-12-07 17:37:02 Analyzed Vulnerability Status updated
2022-12-07 17:37:04 CPE Information updated