High severity · published Dec 22, 2022
CVE-2022-38476
A data race could occur in the <code>PK11_ChangePW</code> function, potentially leading to a use-after-free vulnerability
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Firefox Esr · Mozilla
before 102.2 · source: NVD
TH
Thunderbird · Mozilla
before 102.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-38476
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-38476
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1760998
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-34/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-36/
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