description: 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).
problem types: Heap-based Buffer Overflow (CWE-122)
affected:
{
product: HHVM
vendor: Facebook
versions:
status: affected, version: 3.30.2
lessThan: unspecified, status: affected, version: 3.30.0, versionType: custom
status: affected, version: 3.27.6
lessThan: 3.27.6, status: affected, version: unspecified, versionType: custom
}