// For flags

CVE-2022-45406

Mozilla: Use-after-free of a JavaScript Realm

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

The Mozilla Foundation Security Advisory describes this flaw as:

If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-11-14 CVE Reserved
  • 2022-11-16 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-12 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
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Firefox
Search vendor "Mozilla" for product "Firefox"
< 107.0
Search vendor "Mozilla" for product "Firefox" and version " < 107.0"
-
Affected
Mozilla
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Firefox Esr
Search vendor "Mozilla" for product "Firefox Esr"
< 102.5
Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.5"
-
Affected
Mozilla
Search vendor "Mozilla"
Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
< 102.5
Search vendor "Mozilla" for product "Thunderbird" and version " < 102.5"
-
Affected