CVE-2022-31169
No exploitation reported by the sources we read.
- Published2022-07-22
- Fixed in0.38.2 · 0.34.1 · 0.33.1
- WeaknessCWE-682
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Wasmtime is a standalone runtime for WebAssembly. There is a bug in Wasmtime's code generator, Cranelift, for AArch64 targets where constant divisors can result in incorrect division results at runtime. This affects Wasmtime prior to version 0.38.2 and Cranelift prior to 0.85.2. This issue only affects the AArch64 platform. Other platforms are not affected. The translation rules for constants did not take into account whether sign or zero-extension should happen which resulted in an incorrect value being placed into a register when a division was encountered. The impact of this bug is that programs executing within the WebAssembly sandbox would not behave according to the WebAssembly specification. This means that it is hypothetically possible for execution within the sandbox to go awry and WebAssembly programs could produce unexpected results. This should not impact hosts executing WebAssembly but does affect the correctness of guest programs. This bug has been patched in Wasmtime version 0.38.2 and cranelift-codegen 0.85.2. There are no known workarounds.
Timeline
dates in UTC- 2022-07-2204:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-31169?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-31169?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
OSV · NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 0.x | ≥ 0.0.0-0, < 0.38.2 | 0.38.2 | OSV |
| 0.38 | < 0.38.2 | 0.38.2 | OSV |
| 0.34 | ≥ 0.34.0, < 0.34.1 | 0.34.1 | OSV |
| 0.x | ≥ 0.0.0-0, < 0.33.1 | 0.33.1 | OSV |
| 0.33 | < 0.33.1 | 0.33.1 | OSV |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 0.85 | < 0.85.1 | 0.85.1 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 0.38 | < 0.38.1 | 0.38.1 | NVD |
1 more product in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update wasmtime to 0.38.2 · 0.34.1 · 0.33.1
Advisories and patches
- github.comPatch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Published
- 2022-07-22
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2022-31169?
Is CVE-2022-31169 actively exploited?
What is the CVSS score for CVE-2022-31169?
Running wasmtime? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
No credit card required · No monthly cap on website lookups · 250 API requests/month
Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
- Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.
Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.