the ICU extension LIKE operator is 50000, defined in source
file "icu.c".
- 3.3 Collation Sequence Security Issue
+ 3.3 Collation Sequence Security
Internally, SQLite assumes that indices stored in database files
are sorted according to the collation sequence indicated by the
SQL schema. Changing the definition of a collation sequence after
an index has been built is therefore equivalent to database
- corruption. The SQLite library is not very well tested under
- these conditions, and may contain potential buffer overruns
- or other programming errors that could be exploited by a malicious
- programmer.
-
- If the ICU extension is used in an environment where potentially
- malicious users may execute arbitrary SQL (i.e. gears), they
- should be prevented from invoking the icu_load_collation() function,
- possibly using the authorisation callback.
+ corruption. The SQLite library is well tested for robustness in
+ the fact of database corruption. Database corruption may well
+ lead to incorrect answers, but should not cause memory errors.
-C Do\stry\sto\sevaluate\sthe\sBloom\sfilter\son\sa\sLEFT\sJOIN\searly,\sas\sdoing\sso\nessentially\sconverts\sit\sinto\san\sINNER\sJOIN.\s\sSee\n[forum:/forumpost/544af7eee2|forum\sthread\s544af7eee2].
-D 2022-03-04T20:54:09.487
+C Update\sobsolete\stext\sin\sthe\sICU\sREADME.txt\sfile\stalking\sabout\sSQLite's\nrobustness\s(or\slack\sthereof)\sin\sthe\sface\sof\scorrupt\sdatabase\sfiles.
+D 2022-03-05T11:57:28.075
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U drh
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# Remove this line to create a well-formed Fossil manifest.