CVE-2024-7521: Use After Free
Incomplete WebAssembly exception handing could have led to a use-after-free.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 128.1 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 115.14 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 128.1 - Upgrade
Upgrade
Firefox ESRto a version that resolves this vulnerability.Fixed in 115.14 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 115.14.0esr-1~deb12u1 - Upgrade
Upgrade
debian/firefox-esrto a version that resolves this vulnerability.Fixed in 115.14.0esr-1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:115.14.0-1~deb12u1 - Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:128.1.0esr-1 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 129 - 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-2024-7521?
CVE-2024-7521 has been classified as a critical vulnerability due to its potential for exploitation leading to use-after-free conditions.
How do I fix CVE-2024-7521?
To mitigate CVE-2024-7521, users should upgrade to Firefox version 129, Firefox ESR version 115.14, or Thunderbird version 128.1 or later.
Which versions of Firefox are affected by CVE-2024-7521?
CVE-2024-7521 affects Firefox versions prior to 129 and Firefox ESR versions before 115.14.
Are there any specific platforms impacted by CVE-2024-7521?
CVE-2024-7521 impacts users of Firefox, Firefox ESR, and Thunderbird on all platforms prior to the specified versions.
What are the potential consequences of CVE-2024-7521?
The consequences of CVE-2024-7521 include potential arbitrary code execution and system compromise due to incomplete exception handling.