CVE-2021-45946 — MEDIUM (5.5)

Vulnerability Description

Wasm3 0.5.0 has an out-of-bounds write in CompileBlock (called from Compile_LoopOrBlock and CompileBlockStatements).

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wasm3 Project	Wasm3	0.5.0

Related Weaknesses (CWE)

CWE-787

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33555ExploitIssue TrackingThird Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-678.yamlThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33555ExploitIssue TrackingThird Party Advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-678.yamlThird Party Advisory

FAQ

What is CVE-2021-45946?

CVE-2021-45946 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Wasm3 0.5.0 has an out-of-bounds write in CompileBlock (called from Compile_LoopOrBlock and CompileBlockStatements).

How severe is CVE-2021-45946?

CVE-2021-45946 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-45946?

Check the references section above for vendor advisories and patch information. Affected products include: Wasm3 Project Wasm3.