CVE-2022-38476: Use After Free
A data race could occur in the <code>PK11ChangePW</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.
Other sources
A data race could occur in the PK11ChangePW function, potentially leading to a use-after-free vulnerability. In Firefox, this lock protected the data when a user changed their master password.
— Mozilla
A data race could occur in the PK11ChangePW function, potentially leading to a use-after-free vulnerability. In Thunderbird, this lock protected the data when a user changed their master password.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 102.2 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 140.12.0esr-1~deb12u1Fixed in 153.6.0esr-1~deb12u2Fixed in 140.15.0esr-1~deb13u1Fixed in 153.6.0esr-1~deb13u1Fixed in 153.5.1esr-1Fixed in 153.6.0esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:140.12.0esr-1~deb12u1Fixed in 1:153.6.0esr-1~deb12u2Fixed in 1:140.12.0esr-1~deb13u1Fixed in 1:153.6.0esr-1~deb13u1Fixed in 1:153.5.0esr-1Fixed in 1:153.6.0esr-1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 102.2 - Upgrade
Upgrade
alpine/firefox-esrto a version that resolves this vulnerability.Fixed in 102.2.0-r0 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 102.2.0esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:102.2.0-1
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2022-38476?
CVE-2022-38476 is classified as a medium severity vulnerability.
How do I fix CVE-2022-38476?
To fix CVE-2022-38476, upgrade to Firefox ESR version 102.2 or Thunderbird version 102.2 or later.
What is the impact of CVE-2022-38476?
The impact of CVE-2022-38476 could lead to a use-after-free vulnerability due to a data race in the PK11_ChangePW function.
Which software is affected by CVE-2022-38476?
CVE-2022-38476 affects Firefox ESR versions prior to 102.2 and Thunderbird versions prior to 102.2.
Can CVE-2022-38476 result in data loss?
Yes, CVE-2022-38476 may lead to security issues that could potentially result in data loss.