critical9.8
CVE-2018-6345
The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large.
Impact
The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large. The internal implementation of the function will cause a string to be created with an invalid length, which can then interact poorly with other functions. This affects all supported versions of HHVM (3.30.1 and 3.27.5 and below).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Hhvm | through 3.27.5 from 3.28.0 through 3.30.1 |