CVE-2024-8394: Use After Free
When aborting the verification of an OTR chat session, an attacker could have caused a use-after-free bug leading to a potentially exploitable crash.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/thunderbirdto a version that resolves this vulnerability.Fixed in 1:128.2.0esr-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 128.2
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2024-8394?
CVE-2024-8394 has the potential for high severity due to the existence of a use-after-free vulnerability that could lead to crashes.
How do I fix CVE-2024-8394?
To resolve CVE-2024-8394, users should update their Mozilla Thunderbird to version 128.3 or later.
What types of systems are affected by CVE-2024-8394?
CVE-2024-8394 affects Mozilla Thunderbird versions up to and including 128.2.
Can CVE-2024-8394 be exploited remotely?
Yes, CVE-2024-8394 can potentially be exploited remotely during an OTR chat session verification process.
What is a use-after-free vulnerability in the context of CVE-2024-8394?
In the context of CVE-2024-8394, a use-after-free vulnerability occurs when memory is accessed after it has been freed, leading to crashes or potential code execution.