Vulnerability Details : CVE-2021-3121

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.

Published 2021-01-11 06:15:13

Updated 2022-04-01 15:41:36

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-3121

Probability of exploitation activity in the next 30 days: 0.38%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 70 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-3121

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H	3.9	4.7	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: High

CWE ids for CVE-2021-3121

CWE-129 Improper Validation of Array Index

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

Assigned by: [email protected] (Primary)

References for CVE-2021-3121

https://discuss.hashicorp.com/t/hcsec-2021-23-consul-exposed-to-denial-of-service-in-gogo-protobuf-dependency/29025

Third Party Advisory
https://lists.apache.org/thread.html/r88d69555cb74a129a7bf84838073b61259b4a3830190e05a3b87994e@%3Ccommits.pulsar.apache.org%3E

Mailing List;Third Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0006/

Third Party Advisory
https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E

Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.apache.org/thread.html/rc1e9ff22c5641d73701ba56362fb867d40ed287cca000b131dcf4a44@%3Ccommits.pulsar.apache.org%3E

Mailing List;Third Party Advisory
https://github.com/gogo/protobuf/compare/v1.3.1...v1.3.2

Patch;Third Party Advisory
https://github.com/gogo/protobuf/commit/b03c65ea87cdc3521ede29f62fe3ce239267c1bc

Patch;Third Party Advisory

Products affected by CVE-2021-3121

Golang » Protobuf
Versions before (<) 1.3.2
cpe:2.3:a:golang:protobuf:*:*:*:*:*:*:*:*
Matching versions
Hashicorp » Consul »
Versions from including (>=) 1.10.0 and before (<) 1.10.2
cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
Matching versions
Hashicorp » Consul »
Versions before (<) 1.8.15
cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
Matching versions
Hashicorp » Consul » Enterprise Edition
Versions from including (>=) 1.9.0 and before (<) 1.9.9
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
Matching versions
Hashicorp » Consul » Enterprise Edition
Versions from including (>=) 1.10.0 and before (<) 1.10.2
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
Matching versions
Hashicorp » Consul » Enterprise Edition
Versions before (<) 1.8.15
cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*
Matching versions
Hashicorp » Consul »
Versions from including (>=) 1.9.0 and before (<) 1.9.9
cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
Matching versions