Buffer overflow in Golang Go
CVE-2021-38297
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.109 (95.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.109 · newest: 0.109 · change: 0.000
Affected products
- Golang Go
- Fedoraproject Fedora — versions 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/forum/
- groups.google.com/g/golang-announce/c/AEBu9j7yj5A (Mailing List, Third Party Advisory, Release Notes)
- security.netapp.com/advisory/ntap-20211118-0006/ (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202208-02 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/04/msg00021.html (mailing-list)
Frequently asked questions
- What is CVE-2021-38297?
- CVE-2021-38297 is a critical-severity vulnerability in Golang Go, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-10-18.
- How severe is CVE-2021-38297?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-38297 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.