// For flags

CVE-2021-38561

golang: out-of-bounds read in golang.org/x/text/language leads to DoS

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

golang.org/x/text/language in golang.org/x/text before 0.3.7 can panic with an out-of-bounds read during BCP 47 language tag parsing. Index calculation is mishandled. If parsing untrusted user input, this can be used as a vector for a denial-of-service attack.

golang.org/x/text/language en golang.org/x/text anterior a 0.3.7 puede entrar en pánico con una lectura fuera de los límites durante el análisis de etiquetas de idioma BCP 47. El cálculo del índice está mal manejado. Si se analizan entradas de usuarios que no son de confianza, esto se puede utilizar como vector para un ataque de Denegación de Servicio (DoS).

A flaw was found in golang. The language package for go language can panic due to an out-of-bounds read when an incorrectly formatted language tag is being parsed. This flaw allows an attacker to cause applications using this package to parse untrusted input data to crash, leading to a denial of service of the affected component.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.13.0. Issues addressed include bypass, denial of service, information leakage, out of bounds read, and remote SQL injection vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-08-11 CVE Reserved
  • 2022-07-27 CVE Published
  • 2025-04-10 EPSS Updated
  • 2025-04-14 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Golang
Search vendor "Golang"
 Text
Search vendor "Golang" for product "Text"
 < 0.3.7
Search vendor "Golang" for product "Text" and version " < 0.3.7"
-
Affected