8.8
HIGH
CVE-2020-15656
Mozilla Firefox JIT Javascript Arguments Object Vulnerability
Description

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

INFO

Published Date :

Aug. 10, 2020, 6:15 p.m.

Last Modified :

Feb. 2, 2023, 10:19 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2020-15656 has a 6 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-2020-15656 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 Mozilla firefox
2 Mozilla firefox_esr
3 Mozilla thunderbird
1 Canonical ubuntu_linux
1 Opensuse leap
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-2020-15656.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1647293 Issue Tracking Permissions Required Vendor Advisory
https://usn.ubuntu.com/4443-1/ Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-30/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-32/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-33/ 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 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: 3 months, 4 weeks 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: 5 months, 4 weeks 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.

A JavaScript Engine Fuzzer

C Swift Shell Dockerfile JavaScript Python

Updated: 2 months 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-2020-15656 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-15656 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
  • Modified Analysis by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Reference Type https://usn.ubuntu.com/4443-1/ No Types Assigned https://usn.ubuntu.com/4443-1/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
  • CVE Modified by [email protected]

    Aug. 18, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4443-1/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Aug. 14, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory
    Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1647293 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1647293 Issue Tracking, Permissions Required, Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2020-30/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-30/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2020-32/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-32/ Vendor Advisory
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2020-33/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-33/ Vendor Advisory
    Added CWE NIST CWE-843
    Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 79.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 78.1 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 78.1
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 12, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html [No Types Assigned]
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-2020-15656 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-2020-15656 weaknesses.

Exploit Prediction

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

0.57 }} 0.07%

score

0.78118

percentile

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