CVE-2022-38476

Mozilla: Data race and potential use-after-free in PK11_ChangePW

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A data race could occur in the <code>PK11_ChangePW</code> function, potentially leading to a use-after-free vulnerability. In Firefox, this lock protected the data when a user changed their master password. This vulnerability affects Firefox ESR < 102.2 and Thunderbird < 102.2.

Podría producirse una carrera de datos en la función <code>PK11_ChangePW</code>, lo que podría provocar una vulnerabilidad de use-after-free. En Firefox, este bloqueo protegía los datos cuando un usuario cambiaba su contraseña maestra. Esta vulnerabilidad afecta a Firefox ESR < 102.2 y Thunderbird < 102.2.

The Mozilla Foundation Security Advisory describes this flaw as:

A data race could occur in the PK11_ChangePW function, potentially leading to a use-after-free vulnerability. In Firefox, this lock protected the data when a user changed their master password.

*Credits: N/A

CVSS Scores

NISTv3.1 7.5

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

2022-08-19 CVE Reserved
2022-08-25 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

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-34	2023-01-03
https://www.mozilla.org/security/advisories/mfsa2022-36	2023-01-03
https://access.redhat.com/security/cve/CVE-2022-38476	2022-08-24
https://bugzilla.redhat.com/show_bug.cgi?id=2120678	2022-08-24

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 Esr Search vendor "Mozilla" for product "Firefox Esr"				< 102.2 Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.2"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 102.2 Search vendor "Mozilla" for product "Thunderbird" and version " < 102.2"		-		Affected