CVE-2022-39394 — Out-of-bounds Write in Wasmtime

CWE-787 — Out-of-bounds Write6 documents4 sources
Severity
9.8CRITICALNVD
EPSS
0.1%
top 70.40%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Bytecodealliance WasmtimeDebian Rust-wasmtime
Timeline
PublishedNov 10
Latest updateFeb 1

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…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶CVEListV5bytecodealliance/wasmtime< 2.0.2
▶NVDbytecodealliance/wasmtime2.0.0 — 2.0.2+1
▶crates.iobytecodealliance/wasmtime2.0.0 — 2.0.2+2

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
GHSA
wasmtime_trap_code C API function has out of bounds write vulnerability↗2024-02-01
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OSV
wasmtime_trap_code C API function has out of bounds write vulnerability↗2024-02-01
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OSV
CVE-2022-39394: Wasmtime is a standalone runtime for WebAssembly↗2022-11-10
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OSV
Out of bounds write in `wasmtime_trap_code` C API function↗2022-11-07
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📋Vendor Advisories

1
Debian
CVE-2022-39394: rust-wasmtime - Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, there ...↗2022
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