CVE-2019-11936 Other in HHVM

Critical 9.8 Published 4 Dec 2019 Updated 4 Aug 2024

HHVM APC functions truncate keys at null bytes, potentially causing cache inconsistencies or information disclosure.

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-2019-11936?

CVE-2019-11936 is a critical vulnerability in Facebook HHVM, published on 4 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Various APC functions accept keys containing null bytes as input, leading to premature truncation of input. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1.

Weakness: CWE-626

Which versions are affected by CVE-2019-11936?

It affects 1 product.

Products include Facebook Hhvm.

How do I fix CVE-2019-11936?

No fix has been published for CVE-2019-11936 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-11936 being exploited?

There is no known exploitation of CVE-2019-11936 in the wild and no public exploit code.

Sources

Also known as GHSA-jqrc-77wc-2g85, UBUNTU-CVE-2019-11936.