CVE-2020-1888
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
Insufficient boundary checks when decoding JSON in handleBackslash reads out of bounds memory, potentially leading to DOS. This issue affects HHVM 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versions between 4.33.0 and 4.38.0 (inclusive), versions between 4.9.0 and 4.32.0 (inclusive), and versions prior to 4.8.7.
Comprobaciones de límites insuficientes cuando se decodifica JSON en handleBackslash lee la memoria fuera de límites, conllevando potencialmente a una DOS. Este problema afecta a HHVM versiones 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versiones entre 4.33.0 y 4.38.0 (inclusive), versiones entre 4.9.0 y 4.32.0 (inclusive), y versiones anteriores a 4.8.7.
*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
- 2019-12-02 CVE Reserved
- 2020-03-03 CVE Published
- 2023-03-07 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/facebook/hhvm/commit/b3679121bb3c7017ff04b4c08402ffff5cf59b13 | 2020-03-05 |
| URL | Date | SRC |
|---|---|---|
| https://hhvm.com/blog/2020/02/20/security-update.html | 2020-03-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | < 4.8.7 Search vendor "Facebook" for product "Hhvm" and version " < 4.8.7" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | >= 4.9.0 <= 4.32.0 Search vendor "Facebook" for product "Hhvm" and version " >= 4.9.0 <= 4.32.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | >= 4.33.0 <= 4.38.0 Search vendor "Facebook" for product "Hhvm" and version " >= 4.33.0 <= 4.38.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.39.0 Search vendor "Facebook" for product "Hhvm" and version "4.39.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.40.0 Search vendor "Facebook" for product "Hhvm" and version "4.40.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.41.0 Search vendor "Facebook" for product "Hhvm" and version "4.41.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.42.0 Search vendor "Facebook" for product "Hhvm" and version "4.42.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.43.0 Search vendor "Facebook" for product "Hhvm" and version "4.43.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.44.0 Search vendor "Facebook" for product "Hhvm" and version "4.44.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.45.0 Search vendor "Facebook" for product "Hhvm" and version "4.45.0" | - |
Affected
| ||||||