CVE-2021-33198
golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In Go before 1.15.13 and 1.16.x before 1.16.5, there can be a panic for a large exponent to the math/big.Rat SetString or UnmarshalText method.
En Go versiones anteriores a 1.15.13 y versiones 1.16.x anteriores a 1.16.5, puede haber un pánico por un exponente grande al método math/big.Rat SetString o UnmarshalText.
A flaw was found in Go, where it attempts to allocate excessive memory. This issue may cause panic or unrecoverable fatal error if passed inputs with very large exponents. The highest threat from this vulnerability is to system availability.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-05-19 CVE Reserved
- 2021-08-02 CVE Published
- 2024-04-17 EPSS Updated
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://groups.google.com/g/golang-announce | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI | 2024-08-03 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202208-02 | 2022-09-14 | |
| https://access.redhat.com/security/cve/CVE-2021-33198 | 2024-05-22 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1989575 | 2024-05-22 |
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" | < 1.15.13 Search vendor "Golang" for product "Go" and version " < 1.15.13" | - |
Affected
| ||||||
| Golang Search vendor "Golang" | Go Search vendor "Golang" for product "Go" | >= 1.16.0 < 1.16.5 Search vendor "Golang" for product "Go" and version " >= 1.16.0 < 1.16.5" | - |
Affected
| ||||||