CVE-2019-11936
Last modified
CVE-2019-11936 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hhvm | < 3.30.12 | |
| Hhvm | >= 4.0.0, <= 4.8.5 | |
| Hhvm | >= 4.9.0, <= 4.23.1 | |
| Hhvm | 4.24.0 | |
| Hhvm | 4.25.0 | |
| Hhvm | 4.26.0 | |
| Hhvm | 4.27.0 | |
| Hhvm | 4.28.0 | |
| Hhvm | 4.28.1 |
References
- https://github.com/facebook/hhvm/commit/f57df6d8cf33cb14c40f52287da29360e7003373Patch, Third Party Advisory
- https://hhvm.com/blog/2019/10/28/security-update.htmlVendor Advisory
- https://www.facebook.com/security/advisories/cve-2019-11936Vendor Advisory
- https://github.com/facebook/hhvm/commit/f57df6d8cf33cb14c40f52287da29360e7003373Patch, Third Party Advisory
- https://hhvm.com/blog/2019/10/28/security-update.htmlVendor Advisory
- https://www.facebook.com/security/advisories/cve-2019-11936Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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