Vulnerability in Facebook Hhvm
CVE-2019-11930
An invalid free in mb_detect_order can cause the application to crash or potentially result in remote code execution. 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: 0.032 (88.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Facebook Hhvm — versions unspecified, 4.24.0, 4.28.2
Weakness classification (CWE)
References
- github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36 (Patch)
- hhvm.com/blog/2019/10/28/security-update.html (Vendor Advisory)
- www.facebook.com/security/advisories/cve-2019-11930 (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-11930?
- CVE-2019-11930 is a critical-severity vulnerability in Facebook Hhvm, classified under Release of Invalid Pointer or Reference. CVSS score: 9.8/10. Published 2019-12-04.
- How severe is CVE-2019-11930?
- Critical severity. CVSS v3 base score is 9.8 out of 10.