Vulnerability in Facebook Hhvm
CVE-2019-11936
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (73.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Facebook Hhvm — versions unspecified, 4.24.0, 4.28.2
Weakness classification (CWE)
References
- hhvm.com/blog/2019/10/28/security-update.html (Vendor Advisory)
- github.com/facebook/hhvm/commit/f57df6d8cf33cb14c40f52287da29360e7003373 (Patch, Third Party Advisory)
- www.facebook.com/security/advisories/cve-2019-11936 (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-11936?
- CVE-2019-11936 is a critical-severity vulnerability in Facebook Hhvm, classified under CWE-626. CVSS score: 9.8/10. Published 2019-12-04.
- How severe is CVE-2019-11936?
- Critical severity. CVSS v3 base score is 9.8 out of 10.