Description
Insufficient boundary checks when processing a string in mb_ereg_replace allows access to out-of-bounds memory. 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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Facebook HHVM
4.28.2affected4.28.0 to < unspecifiedaffected4.27.1affected4.27.0 to < unspecifiedaffected4.26.1affected4.26.0 to < unspecifiedaffected4.25.1affected4.25.0 to < unspecifiedaffected4.24.1affected4.24.0 to < unspecifiedaffected4.23.2affected4.9.0 to < unspecifiedaffected4.8.6affected4.0.0 to < unspecifiedaffected3.30.12affectedunspecified to < 3.30.12affected