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Vulnerability Details : CVE-2021-38501

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 Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.
Publish Date : 2021-11-03 Last Update Date : 2021-11-04
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Memory corruption
CWE ID CWE id is not defined for this vulnerability

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:3755: firefox security update (Important) oval:com.redhat.rhsa:def:20213755 unix
RHSA-2021:3791: firefox security update (Important) oval:com.redhat.rhsa:def:20213791 unix
RHSA-2021:3838: thunderbird security update (Important) oval:com.redhat.rhsa:def:20213838 unix
RHSA-2021:3841: thunderbird security update (Important) oval:com.redhat.rhsa:def:20213841 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-38501

# Product Type Vendor Product Version Update Edition Language
1 Application Mozilla Firefox * * * * Version Details Vulnerabilities
2 Application Mozilla Firefox Esr * * * * Version Details Vulnerabilities
3 Application Mozilla Thunderbird * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Mozilla Firefox 1
Mozilla Firefox Esr 1
Mozilla Thunderbird 1

- References For CVE-2021-38501

https://www.mozilla.org/security/advisories/mfsa2021-47/
https://www.mozilla.org/security/advisories/mfsa2021-43/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1685354%2C1715755%2C1723176
https://www.mozilla.org/security/advisories/mfsa2021-45/

- Metasploit Modules Related To CVE-2021-38501

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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