8.1
HIGH
CVE-2020-1912
Facebook Hermes JavaScript OOB Read/Write Vulnerability
Description

An out-of-bounds read/write vulnerability when executing lazily compiled inner generator functions in Facebook Hermes prior to commit 091835377369c8fd5917d9b87acffa721ad2a168 allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.

INFO

Published Date :

Sept. 9, 2020, 7:15 p.m.

Last Modified :

Nov. 7, 2023, 3:19 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Public PoC/Exploit Available at Github

CVE-2020-1912 has a 7 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-1912 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Facebook hermes
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-1912.

URL Resource
https://github.com/facebook/hermes/commit/091835377369c8fd5917d9b87acffa721ad2a168 Patch Third Party Advisory
https://www.facebook.com/security/advisories/cve-2020-1912 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Dockerfile Shell Swift JavaScript Python C C++

Updated: 1 month, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 26, 2024, 7:52 p.m. This repo has been linked 44 different CVEs too.

None

Dockerfile Shell Swift JavaScript Python C

Updated: 2 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 28, 2024, 8:12 a.m. This repo has been linked 60 different CVEs too.

None

Dockerfile Shell Swift JavaScript Python C

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : July 10, 2024, 7:52 a.m. This repo has been linked 56 different CVEs too.

None

Dockerfile Shell Swift JavaScript Python C

Updated: 6 months ago
0 stars 0 fork 0 watcher
Born at : May 4, 2024, 7:46 a.m. This repo has been linked 60 different CVEs too.

None

Dockerfile Shell OCaml Swift C

Updated: 2 months, 2 weeks ago
60 stars 8 fork 8 watcher
Born at : Oct. 10, 2022, 1:34 p.m. This repo has been linked 38 different CVEs too.

CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送

Python

Updated: 2 months, 2 weeks ago
176 stars 24 fork 24 watcher
Born at : June 15, 2020, 2:56 p.m. This repo has been linked 692 different CVEs too.

A JavaScript Engine Fuzzer

C Swift Shell Dockerfile JavaScript Python

Updated: 2 months, 1 week ago
1851 stars 290 fork 290 watcher
Born at : March 20, 2019, 3:32 p.m. This repo has been linked 60 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-1912 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-1912 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Removed CWE Facebook, Inc. CWE-125
  • Initial Analysis by [email protected]

    Sep. 15, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/facebook/hermes/commit/091835377369c8fd5917d9b87acffa721ad2a168 No Types Assigned https://github.com/facebook/hermes/commit/091835377369c8fd5917d9b87acffa721ad2a168 Patch, Third Party Advisory
    Changed Reference Type https://www.facebook.com/security/advisories/cve-2020-1912 No Types Assigned https://www.facebook.com/security/advisories/cve-2020-1912 Vendor Advisory
    Added CWE NIST CWE-787
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:a:facebook:hermes:*:*:*:*:*:*:*:* versions up to (including) 0.4.3
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-1912 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-1912 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.70 }} 0.11%

score

0.80575

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability