CVE-2021-38500
Mozilla Firefox/Generic Memory Safety Bugs
Description
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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 Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.
INFO
Published Date :
Nov. 3, 2021, 1:15 a.m.
Last Modified :
Oct. 21, 2024, 1:55 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-38500
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.
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-2021-38500.
| URL | Resource |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321 | Broken Link Issue Tracking |
| https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5034 | Issue Tracking Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-43/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-44/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-45/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-46/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-47/ | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-38500 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-38500 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.
-
CPE Deprecation Remap by [email protected]
Oct. 21, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions from (including) 91.0 from (excluding) 91.2 OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions from (including) 91.0 from (excluding) 91.2 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 17, 2022
Action Type Old Value New Value Changed Reference Type https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321 Broken Link https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321 Broken Link, Issue Tracking Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5034 No Types Assigned https://www.debian.org/security/2022/dsa-5034 Issue Tracking, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 04, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html [No Types Assigned] -
CVE Modified by [email protected]
Jan. 03, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5034 [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 04, 2021
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:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321 No Types Assigned https://bugzilla.mozilla.org/buglist.cgi?bug_id=1725854%2C1728321 Broken Link Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-43/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-43/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-44/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-44/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-45/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-45/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-46/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-46/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-47/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-47/ Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 93.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 78.15 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions from (including) 91.0 up to (excluding) 91.2 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 78.15 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions from (including) 91.0 up to (excluding) 91.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-38500 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-2021-38500
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.20 }} 0.02%
score
0.58544
percentile