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Deadlock when trying to access database with invalid crypt key [CORE4999] #5287

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firebird-issue-importer opened this issue Nov 9, 2015 · 5 comments

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firebird-issue-importer commented Nov 9, 2015

Submitted by: @AlexPeshkoff

After changing "Value" parameter of DbCrypt_example plugin an attempt to access previously encrypted database (i.e. access database with wrong decrypt key) makes engine to hang forever

Commits: ee96e00 FirebirdSQL/fbt-repository@0409f47

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firebird-issue-importer commented Nov 9, 2015

Modified by: @AlexPeshkoff

assignee: Alexander Peshkov [ alexpeshkoff ]

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firebird-issue-importer commented Nov 9, 2015

Modified by: @AlexPeshkoff

description: After changing "Value" parameter of DbCrypt_example plugin an attempt to access previously encrypted database causes hang => After changing "Value" parameter of DbCrypt_example plugin an attempt to access previously encrypted database (i.e. access database with wrong decrypt key) makes engine to hang forever

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firebird-issue-importer commented Nov 9, 2015

Modified by: @AlexPeshkoff

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 3.0.0 [ 10048 ]

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firebird-issue-importer commented Nov 9, 2015

Commented by: @aafemt

Because a page decrypted with a wrong key is effectively just a pile of junk, accessing it can produce any kind of error. You'd better check decryption result (and consistency of the page at all) with some kind of checksum.

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firebird-issue-importer commented May 25, 2016

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: No test => Cannot be tested

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