CVE-2020-1916: Integer Overflow
Published Mar 10, 2021
·Updated
An incorrect size calculation in ldapescape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.
Affected Software
7 affected components
Facebook HHVM<4.56.2
Facebook HHVM>=4.57.0<4.78.1
Facebook HHVM=4.79.0
Facebook HHVM=4.80.0
Facebook HHVM=4.81.0
Facebook HHVM=4.82.0
Facebook HHVM=4.83.0
Remediation
Event History
Mar 10, 2021
CVE Published
via MITRE·03:50 PM
Data Sourced
via MITRE·03:50 PM
DescriptionWeakness
Frequently Asked Questions
1
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2020-1916.
2
What is the severity rating of CVE-2020-1916?
CVE-2020-1916 has a severity rating of 9.8 (critical).
3
Which software versions are affected by CVE-2020-1916?
CVE-2020-1916 affects HHVM versions prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, and 4.83.0.
4
What is the impact of CVE-2020-1916?
CVE-2020-1916 can lead to an integer overflow and result in an out-of-bounds write.
5
How can CVE-2020-1916 be fixed?
To fix CVE-2020-1916, update HHVM to version 4.78.1 or later.