Description
Insufficient boundary checks when decoding JSON in handleBackslash reads out of bounds memory, potentially leading to DOS. This issue affects HHVM 4.45.0, 4.44.0, 4.43.0, 4.42.0, 4.41.0, 4.40.0, 4.39.0, versions between 4.33.0 and 4.38.0 (inclusive), versions between 4.9.0 and 4.32.0 (inclusive), and versions prior to 4.8.7.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Facebook HHVM
4.45.1affected4.45.0affected4.44.1affected4.44.0affected4.43.1affected4.43.0affected4.42.1affected4.42.0affected4.41.1affected4.41.0affected4.40.1affected4.40.0affected4.39.1affected4.39.0affected4.38.1affected4.33.0 to < unspecifiedaffected4.32.1affected4.9.0 to < unspecifiedaffected4.8.7affectedunspecified to ≤ 4.8.6affected