CVE-2019-3561: Buffer Overflow
Insufficient boundary checks for the strrpos and strripos functions allow access to out-of-bounds memory. This affects all supported versions of HHVM (4.0.3, 3.30.4, and 3.27.7 and below).
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-3561?
CVE-2019-3561 is a vulnerability in the strrpos and strripos functions of HHVM that allows access to out-of-bounds memory.
How does CVE-2019-3561 affect HHVM?
CVE-2019-3561 affects all supported versions of HHVM (4.0.3, 3.30.4, and 3.27.7 and below).
What is the severity of CVE-2019-3561?
CVE-2019-3561 has a severity rating of 9.8 (Critical).
How can I fix CVE-2019-3561?
To fix CVE-2019-3561, upgrade to HHVM version 4.0.4 or apply the appropriate patches provided by Facebook.
Where can I find more information about CVE-2019-3561?
More information about CVE-2019-3561 can be found in the references provided: [Link 1](https://github.com/facebook/hhvm/commit/46003b4ab564b2abcd8470035fc324fe36aa8c75), [Link 2](https://hhvm.com/blog/2019/04/03/hhvm-4.0.4.html).