CVE-2021-38297

golang: Command-line arguments may overwrite global data

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Go versiones anteriores a 1.16.9 y versiones 1.17.x anteriores a 1.17.2, presenta un Desbordamiento de Búfer por medio de argumentos grandes en una invocación de función desde un módulo WASM, cuando GOARCH=wasm GOOS=js es usado

A flaw was found in golang. This vulnerability can only be triggered when invoking functions from vulnerable WASM (WebAssembly) Modules. Go can be compiled to WASM. If the product or service doesn't use WASM functions, it is not affected, although it uses golang.

An update that solves one vulnerability and has one errata is now available. This update for go1.16 fixes the following issues. Update to go1.16.9 do not let command line args overwrite global data This update was imported from the SUSE:SLE-15:Update update project. Patch Instructions. To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-09 CVE Reserved
2021-10-18 CVE Published
2023-12-05 First Exploit
2024-08-04 CVE Updated
2025-07-09 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (11)

URL	Tag	Source
https://groups.google.com/forum/#%21forum/golang-announce
https://groups.google.com/g/golang-announce/c/AEBu9j7yj5A	Mailing List
https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html	Mailing List
https://security.netapp.com/advisory/ntap-20211118-0006	Third Party Advisory

URL	Date	SRC
https://github.com/gkrishnan724/CVE-2021-38297	2023-12-05
https://github.com/paras98/CVE-2021-38297-Go-wasm-Replication	2024-04-04

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OFS3M3OFB24SWPTIAPARKGPUMQVUY6Z	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON7BQRRJZBOR5TJHURBAB3WLF4YXFC6Z	2023-11-07
https://security.gentoo.org/glsa/202208-02	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-38297	2022-05-10
https://bugzilla.redhat.com/show_bug.cgi?id=2012887	2022-05-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Golang Search vendor "Golang"		Go Search vendor "Golang" for product "Go"				< 1.16.9 Search vendor "Golang" for product "Go" and version " < 1.16.9"		-		Affected
Golang Search vendor "Golang"		Go Search vendor "Golang" for product "Go"				>= 1.17.0 < 1.17.2 Search vendor "Golang" for product "Go" and version " >= 1.17.0 < 1.17.2"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				35 Search vendor "Fedoraproject" for product "Fedora" and version "35"		-		Affected