// For flags

CVE-2022-34484

Mozilla: Memory safety bugs fixed in Firefox 102 and Firefox ESR 91.11

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

3
*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. 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 < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

El equipo Mozilla Fuzzing informó sobre posibles vulnerabilidades presentes en Thunderbird 91.10. 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 &lt; 102, Firefox ESR &lt; 91.11, Thunderbird &lt; 102 y Thunderbird &lt; 91.11.

The Mozilla Foundation Security Advisory describes this flaw as: The Mozilla Fuzzing Team reporting potential vulnerabilities present in Firefox 101 and Firefox ESR 91.10. 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.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.11 ESR. Issues addressed include bypass, integer overflow, and use-after-free vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-06-24 CVE Reserved
  • 2022-06-28 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions (3)