8.8
HIGH
CVE-2020-15659
Firefox/Thunderbird Memory Corruption Remote Code Execution Vulnerability
Description

Mozilla developers and community members reported memory safety bugs present in Firefox 78 and Firefox ESR 78.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 79, Firefox ESR < 68.11, Firefox ESR < 78.1, Thunderbird < 68.11, and Thunderbird < 78.1.

INFO

Published Date :

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

Last Modified :

Aug. 21, 2020, 6:21 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2020-15659 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

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).

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

The following list is the news that have been mention CVE-2020-15659 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-15659 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]

    Aug. 21, 2020

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html Mailing List, Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html Mailing List, Patch, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Mailing List, Patch, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://usn.ubuntu.com/4443-1/ No Types Assigned https://usn.ubuntu.com/4443-1/ Patch, Third Party Advisory
    Changed 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) 68.11 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions from (including) 70.0 up to (excluding) 78.1 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 68.11 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions from (including) 70.0 up to (excluding) 78.1 OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 79.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 68.11 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions from (including) 78.0 up to (excluding) 78.1.0 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 68.11 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions from (including) 78.0.1 up to (excluding) 78.1.0
    Changed CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *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. 18, 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/msg00022.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.html Mailing List, Third Party Advisory
    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 http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html Third Party Advisory
    Changed Reference Type https://bugzilla.mozilla.org/buglist.cgi?bug_id=1550133%2C1633880%2C1643613%2C1644839%2C1645835%2C1646006%2C1646787%2C1649347%2C1650811%2C1651678 No Types Assigned https://bugzilla.mozilla.org/buglist.cgi?bug_id=1550133%2C1633880%2C1643613%2C1644839%2C1645835%2C1646006%2C1646787%2C1649347%2C1650811%2C1651678 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/mfsa2020-31/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-31/ 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
    Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2020-35/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2020-35/ Vendor Advisory
    Added CWE NIST CWE-787
    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) 68.11 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions from (including) 70.0 up to (excluding) 78.1 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 68.11 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions from (including) 70.0 up to (excluding) 78.1
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 14, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00032.html [No Types Assigned]
  • 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]
  • CVE Modified by [email protected]

    Aug. 11, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00022.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-2020-15659 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-2020-15659 weaknesses.

Exploit Prediction

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

0.62 }} 0.08%

score

0.79119

percentile

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