CVE-2022-24791 is a critical use-after-free vulnerability in Wasmtime, a WebAssembly runtime, specifically affecting versions prior to 0.34.2 and 0.35.2 when both externrefs and epoch interruption are enabled. This flaw, caused by Cranelift failing to emit stack maps in cold blocks, allows for memory corruption. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk with a network attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. There is currently no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.34.0, < 0.34.2CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
>= 0.35.0, < 0.35.2CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.