CVE-2022-22740: Use After Free
Certain network request objects were freed too early when releasing a network request handle. This could have lead to a use-after-free causing a potentially exploitable crash.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 91.5 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 91.5 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 96 - Upgrade
Upgrade
alpine/firefoxto a version that resolves this vulnerability.Fixed in 97.0-r0 - Upgrade
Upgrade
alpine/firefox-esrto a version that resolves this vulnerability.Fixed in 91.5.0-r0 - Upgrade
Upgrade
alpine/librewolfto a version that resolves this vulnerability.Fixed in 97.0-r0 - Upgrade
Upgrade
alpine/thunderbirdto a version that resolves this vulnerability.Fixed in 91.5.0-r0 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 91.5.0esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:91.5.0-1 - Upgrade
Upgrade
debian/firefoxto a version that resolves this vulnerability.Fixed in 159.0.1-1 - 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
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2022-22740?
CVE-2022-22740 has been assessed with a moderate severity rating.
How do I fix CVE-2022-22740?
To mitigate CVE-2022-22740, update Mozilla Firefox to version 96 or later, or Firefox ESR to version 91.5 or later.
Which versions are affected by CVE-2022-22740?
CVE-2022-22740 affects Firefox versions up to 96, Firefox ESR versions up to 91.5, and Thunderbird versions up to 91.5.
What type of vulnerability is CVE-2022-22740?
CVE-2022-22740 is a use-after-free vulnerability that can cause crashes.
What products are impacted by CVE-2022-22740?
CVE-2022-22740 impacts Mozilla Firefox, Mozilla Firefox ESR, and Mozilla Thunderbird.