// For flags

CVE-2020-1893

 

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 TryParse 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 TryParse 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), y versiones entre 4.9.0 y 4.32.0 (inclusive), y versiones anteriores a 4.8.7.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* 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
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