Alex Peshkoff via Firebird-devel wrote 31.03.2022 15:21:
Note that the crash happen on compression so it doesn't affect Firebird
security.
Did not catch why - we use zlib compression on the wire (since fb3) and in gbak
(since fb4). Both cases are not default but anyway not good.
The crash happen when a stream of definite data is tried to be compressed.
IMHO, it is hard (if possible at all) to purposefully construct such stream
*from* server to crash or exploit it.
--
WBR, SD.
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