CVE-2022-22743: Medium severity Mozilla Firefox vulnerability
When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode.
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 CVE-2022-22743?
CVE-2022-22743 is a vulnerability that allows an attacker-controlled tab to prevent the browser from leaving fullscreen mode.
Which software versions are affected by CVE-2022-22743?
Mozilla Firefox ESR up to version 91.5, Mozilla Firefox up to version 96, and Mozilla Thunderbird up to version 91.5 are affected by CVE-2022-22743.
What is the severity of CVE-2022-22743?
CVE-2022-22743 has a severity rating of high (7) based on the Common Vulnerability Scoring System (CVSS).
How can I fix CVE-2022-22743?
To fix CVE-2022-22743, update Mozilla Firefox ESR to version 91.5 or later, update Mozilla Firefox to version 96 or later, and update Mozilla Thunderbird to version 91.5 or later.
Where can I find more information about CVE-2022-22743?
You can find more information about CVE-2022-22743 in the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1739220), [Mozilla Advisory MFSA2022-03](https://www.mozilla.org/en-US/security/advisories/mfsa2022-03/), and [Mozilla Advisory MFSA2022-01](https://www.mozilla.org/en-US/security/advisories/mfsa2022-01/).