CVE-2020-16845
golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Go before 1.13.15 and 14.x before 1.14.7 can have an infinite read loop in ReadUvarint and ReadVarint in encoding/binary via invalid inputs.
Go versiones anteriores a 1.13.15 y versiones 14.x anteriores a 1.14.7, puede presentar un bucle de lectura infinito en las funciones ReadUvarint y ReadVarint en encoding/binary por medio de entradas no válidas
A flaw was found in the Go encoding/binary package. Certain invalid inputs to the ReadUvarint or the ReadVarint causes those functions to read an unlimited number of bytes from the ByteReader argument before returning an error. This flaw possibly leads to processing more input than expected. 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
- 2020-08-04 CVE Reserved
- 2020-08-06 CVE Published
- 2024-07-13 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CAPEC
References (17)
| URL | Tag | Source |
|---|---|---|
| https://groups.google.com/forum/#%21topic/golang-announce/NyPIaucMgXo | X_refsource_confirm | |
| https://groups.google.com/forum/#%21topic/golang-announce/_ulYYcIWg3Q | X_refsource_misc | |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00037.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/11/msg00038.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20200924-0002 | Third Party Advisory |
|
| https://www.oracle.com/security-alerts/cpuApr2021.html | Third Party Advisory |
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| URL | Date | SRC |
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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" | < 1.13.15 Search vendor "Golang" for product "Go" and version " < 1.13.15" | - |
Affected
| ||||||
| Golang Search vendor "Golang" | Go Search vendor "Golang" for product "Go" | >= 1.14 < 1.14.7 Search vendor "Golang" for product "Go" and version " >= 1.14 < 1.14.7" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.2 Search vendor "Opensuse" for product "Leap" and version "15.2" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 31 Search vendor "Fedoraproject" for product "Fedora" and version "31" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
Affected
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