CVE-2019-11936 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/facebook/hhvm/commit/f57df6d8cf33cb14c40f52287da29360e7003373 https://hhvm.com/blog/2019/10/28/security-update.html https://www.facebook.com/security/advisories/cve-2019-11936

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8