Description
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.
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