PT-2021-24331 · Wasm3 · Wasm3

Published 2021-12-31 · Updated 2022-01-10 · CVE-2021-45946

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Wasm3 version 0.5.0

Description: The issue is related to an out-of-bounds write in the CompileBlock function, which is called from Compile LoopOrBlock and CompileBlockStatements.

Recommendations: For Wasm3 version 0.5.0, at the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-45946

Affected Products

Wasm3

References · 4

• 🔥 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33555 · Exploit
• https://osv.dev/vulnerability/CVE-2021-45946 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45946 · Security Note
• https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-678.yaml · Note