// For flags

CVE-2022-40960

Mozilla: Data-race when parsing non-UTF-8 URLs in threads

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

El uso simultáneo del analizador de URL con datos que no son UTF-8 no era seguro para subprocesos. Esto podría provocar un use-after-free que provocaría un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR &lt; 102.3, Thunderbird &lt; 102.3 y Firefox &lt; 105.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue that concurrent use of the URL parser with non-UTF-8 data was not thread-safe, leading to a use-after-free problem and causing a potentially exploitable crash.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
High
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-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
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< 105.0
Search vendor "Mozilla" for product "Firefox" and version " < 105.0"
-
Affected
Mozilla
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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