CVE-2020-1916 Integer overflow in HHVM
An integer overflow in HHVM's ldap_escape function allows out-of-bounds writes, potentially enabling remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-1916?
CVE-2020-1916 is a critical vulnerability in Facebook HHVM, published on 10 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An incorrect size calculation in ldap_escape 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.
Which versions are affected by CVE-2020-1916?
It affects 1 product.
Products include Facebook Hhvm.
How do I fix CVE-2020-1916?
No fix has been published for CVE-2020-1916 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1916 being exploited?
There is no known exploitation of CVE-2020-1916 in the wild and no public exploit code.
Other vulnerabilities in Facebook HHVM
Sources
Also known as GHSA-37q2-jfrf-gv36, UBUNTU-CVE-2020-1916.