// For flags

CVE-2021-3121

gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation

Severity Score

8.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.

Se detectó un problema en GoGo Protobuf versiones anteriores a 1.3.2. El archivo plugin/unmarshal/unmarshal.go carece de determinada comprobación de índice, también se conoce como el problema "skippy peanut butter"

A flaw was found in github.com/gogo/protobuf before 1.3.2 that allows an out-of-bounds access when unmarshalling certain protobuf objects. This flaw allows a remote attacker to send crafted protobuf messages, causing panic and resulting in a denial of service. The highest threat from this vulnerability is to availability.

Red Hat Advanced Cluster Management for Kubernetes 2.2.2 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console-with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include code execution, denial of service, integer overflow, and null pointer vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
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
  • 2021-01-11 CVE Reserved
  • 2021-01-11 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-06-01 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-129: Improper Validation of Array Index
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"
Protobuf
Search vendor "Golang" for product "Protobuf"
< 1.3.2
Search vendor "Golang" for product "Protobuf" and version " < 1.3.2"
-
Affected
Hashicorp
Search vendor "Hashicorp"
Consul
Search vendor "Hashicorp" for product "Consul"
< 1.8.15
Search vendor "Hashicorp" for product "Consul" and version " < 1.8.15"
-
Affected
Hashicorp
Search vendor "Hashicorp"
Consul
Search vendor "Hashicorp" for product "Consul"
< 1.8.15
Search vendor "Hashicorp" for product "Consul" and version " < 1.8.15"
enterprise
Affected
Hashicorp
Search vendor "Hashicorp"
Consul
Search vendor "Hashicorp" for product "Consul"
>= 1.9.0 < 1.9.9
Search vendor "Hashicorp" for product "Consul" and version " >= 1.9.0 < 1.9.9"
-
Affected
Hashicorp
Search vendor "Hashicorp"
Consul
Search vendor "Hashicorp" for product "Consul"
>= 1.9.0 < 1.9.9
Search vendor "Hashicorp" for product "Consul" and version " >= 1.9.0 < 1.9.9"
enterprise
Affected
Hashicorp
Search vendor "Hashicorp"
Consul
Search vendor "Hashicorp" for product "Consul"
>= 1.10.0 < 1.10.2
Search vendor "Hashicorp" for product "Consul" and version " >= 1.10.0 < 1.10.2"
-
Affected
Hashicorp
Search vendor "Hashicorp"
Consul
Search vendor "Hashicorp" for product "Consul"
>= 1.10.0 < 1.10.2
Search vendor "Hashicorp" for product "Consul" and version " >= 1.10.0 < 1.10.2"
enterprise
Affected