What’s Vulnerable › Vulnerabilities

CVE-2021-38297

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-18 · updated 2026-06-17
• Weakness: CWE-120

Description

Go before 1.16.9 and 1.17.x before 1.17.2 has a Buffer Overflow via large arguments in a function invocation from a WASM module, when GOARCH=wasm GOOS=js is used.

Affected products

• Fedoraproject Fedora: 34, 35
• Go: before 1.16.9; from 1.17.0 before 1.17.2 — fixed in 1.16.9, 1.17.2

How to fix

Upgrade to a fixed version: Go 1.16.9, 1.17.2. Check the vendor advisory for mitigations.

References

• https://groups.google.com/forum/#%21forum/golang-announce
• https://groups.google.com/g/golang-announce/c/AEBu9j7yj5A
• https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OFS3M3OFB24SWPTIAPARKGPUMQVUY6Z/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON7BQRRJZBOR5TJHURBAB3WLF4YXFC6Z/
• https://security.gentoo.org/glsa/202208-02
• https://security.netapp.com/advisory/ntap-20211118-0006/
• https://groups.google.com/forum/#%21forum/golang-announce
• https://groups.google.com/g/golang-announce/c/AEBu9j7yj5A
• https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OFS3M3OFB24SWPTIAPARKGPUMQVUY6Z/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON7BQRRJZBOR5TJHURBAB3WLF4YXFC6Z/

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