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CVE-2021-32629

HIGH

Memory access due to code generation flaw in Cranelift module

Published May 21, 2021Updated November 8, 2023Source: osv

Summary

There is a bug in 0.73.0 of the Cranelift x64 backend that can create a scenario that could result in a potential sandbox escape in a WebAssembly module. Users of versions 0.73.0 of Cranelift should upgrade to either 0.73.1 or 0.74 to remediate this vulnerability. Users of Cranelift prior to 0.73.0 should update to 0.73.1 or 0.74 if they were not using the old default backend. More details can be found in the GitHub Security Advisory at: <https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hpqh-2wqx-7qp5>

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update cranelift-codegen to 0.73.1 or later
cargo update -p cranelift-codegen --precise 0.73.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

PackageEcosystemAffectedFixed In
cranelift-codegen
crates.io
All versions0.73.1

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2021-32629?
Memory access due to code generation flaw in Cranelift module This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2021-32629?
CVE-2021-32629 affects cranelift-codegen. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-32629 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

RUSTSEC-2021-0067
GHSA-hpqh-2wqx-7qp5
PYSEC-2021-87

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