CVE-2022-40962

Mozilla: Memory safety bugs fixed in Firefox 105 and Firefox ESR 102.3

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mozilla developers Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 104 and Firefox ESR 102.2. 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 ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Los desarrolladores de Mozilla, Nika Layzell, Timothy Nikkel, Sebastian Hengst, Andreas Pehrson y Mozilla Fuzzing Team informaron sobre errores de seguridad de la memoria presentes en Firefox 104 y Firefox ESR 102.2. Algunos de estos errores mostraron evidencia de corrupción de memoria y suponemos que con suficiente esfuerzo algunos de ellos podrían haberse aprovechado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox ESR < 102.3, Thunderbird < 102.3 y Firefox < 105.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue of Mozilla developers Nika Layzell, Timothy Nikkel, Jeff Muizelaar, Sebastian Hengst, Andreas Pehrson, and the Mozilla Fuzzing Team reporting memory safety bugs present in Firefox 104 and Firefox ESR 102.2. Some of these bugs showed evidence of memory corruption and the presumption that with enough effort, some have been exploited to run arbitrary code.

*Credits: N/A

CVSS Scores

NISTv3.1 8.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-09-19 CVE Reserved
2022-09-27 CVE Published
2024-08-03 CVE Updated
2024-08-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1776655%2C1777574%2C1784835%2C1785109%2C1786502%2C1789440	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-40	2023-08-08
https://www.mozilla.org/security/advisories/mfsa2022-41	2023-08-08
https://www.mozilla.org/security/advisories/mfsa2022-42	2023-08-08
https://access.redhat.com/security/cve/CVE-2022-40962	2022-09-26
https://bugzilla.redhat.com/show_bug.cgi?id=2128797	2022-09-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 105.0 Search vendor "Mozilla" for product "Firefox" and version " < 105.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 102.3 Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.3"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 102.3 Search vendor "Mozilla" for product "Thunderbird" and version " < 102.3"		-		Affected