CVE-2021-43537: Incorrect Type Cast
An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash.
Affected Software
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-2021-43537?
CVE-2021-43537 is considered to have a high severity due to its potential for causing a memory corruption that can lead to crashes.
How do I fix CVE-2021-43537?
To fix CVE-2021-43537, you should update affected products to their latest patched versions, such as Thunderbird 91.4 or Firefox ESR 91.4.
Which products are affected by CVE-2021-43537?
CVE-2021-43537 affects Mozilla Thunderbird versions prior to 91.4 and multiple versions of Firefox and Firefox ESR up to 91.4.
What type of vulnerability is CVE-2021-43537?
CVE-2021-43537 is a memory corruption vulnerability caused by incorrect type conversion from 64-bit to 32-bit integers.
Can CVE-2021-43537 be exploited remotely?
Yes, CVE-2021-43537 has the potential to be exploited remotely, leading to application crashes.