CVE-2019-11929
Last modified
CVE-2019-11929 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Insufficient boundary checks when formatting numbers in number_format allows read/write access to out-of-bounds memory, potentially leading to remote code execution. This issue affects HHVM versions prior to 3.30.10, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.18.2, and versions 4.19.0, 4.19.1, 4.20.0, 4.20.1, 4.20.2, 4.21.0, 4.22.0, 4.23.0.. EPSS estimates a 4.03% chance of exploitation in the next 30 days.
Description
Insufficient boundary checks when formatting numbers in number_format allows read/write access to out-of-bounds memory, potentially leading to remote code execution. This issue affects HHVM versions prior to 3.30.10, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.18.2, and versions 4.19.0, 4.19.1, 4.20.0, 4.20.1, 4.20.2, 4.21.0, 4.22.0, 4.23.0.
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 | < 3.30.10 | |
| Hhvm | >= 4.0.0, <= 4.8.5 | |
| Hhvm | >= 4.9.0, <= 4.18.2 | |
| Hhvm | 4.19.0 | |
| Hhvm | 4.19.1 | |
| Hhvm | 4.20.0 | |
| Hhvm | 4.20.1 | |
| Hhvm | 4.20.2 | |
| Hhvm | 4.21.0 | |
| Hhvm | 4.22.0 | |
| Hhvm | 4.23.0 |
References
- https://github.com/facebook/hhvm/commit/dbeb9a56a638e3fdcef8b691c2a2967132dae692Patch, Third Party Advisory
- https://hhvm.com/blog/2019/09/25/security-update.htmlVendor Advisory
- https://www.facebook.com/security/advisories/cve-2019-11929Third Party Advisory
- https://github.com/facebook/hhvm/commit/dbeb9a56a638e3fdcef8b691c2a2967132dae692Patch, Third Party Advisory
- https://hhvm.com/blog/2019/09/25/security-update.htmlVendor Advisory
- https://www.facebook.com/security/advisories/cve-2019-11929Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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