CVE-2022-39394

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*

History

21 Nov 2024, 07:18

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 9.8
v2 : unknown
v3 : 3.8
References () https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36 - Patch, Third Party Advisory () https://github.com/bytecodealliance/wasmtime/commit/087d9d7becf7422b3f872a3bcd5d97bb7ce7ff36 - Patch, Third Party Advisory
References () https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q - Third Party Advisory () https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-h84q-m8rr-3v9q - Third Party Advisory

Information

Published : 2022-11-10 20:15

Updated : 2024-11-21 07:18


NVD link : CVE-2022-39394

Mitre link : CVE-2022-39394

CVE.ORG link : CVE-2022-39394


JSON object : View

Products Affected

bytecodealliance

  • wasmtime
CWE
CWE-787

Out-of-bounds Write