CVE-2019-3557 | BDVDB-2026-111721 Detail

Description#

The implementations of streams for bz2 and php://output improperly implemented their readImpl functions, returning -1 consistently. This behavior caused some stream functions, such as stream_get_line, to trigger an out-of-bounds read when operating on such malformed streams. The implementations were updated to return valid values consistently. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).

Impact#

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Exploit#

History#

1. Version 12019-01-15Record published in the CVE List.
2. Version 22024-08-04Most recent update recorded in the CVE List.