Re: Further issues with jsonb semantics, documentation - Mailing list pgsql-hackers

On Thu, Jun 4, 2015 at 5:43 PM, Peter Geoghegan <pg@heroku.com> wrote:
>
> BTW, there is a bug here -- strtol() needs additional defenses [1]
> (before casting to int):
>
> postgres=# select jsonb_set('[1, 2, 3, 4,
> 5,6,7,8,9,10,11,12,13,14,15,16,17,18]',
> '{"9223372036854775806"}'::text[], '"Input unsanitized"', false) ;
>                                     jsonb_set
> ----------------------------------------------------------------------------------
>  [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, "Input
> unsanitized", 18]
> (1 row)
>
> [1]
https://www.securecoding.cert.org/confluence/display/cplusplus/INT06-CPP.+Use+strtol()+or+a+related+function+to+convert+a+string+token+to+an+integer

I attach a fix for this bug. The commit message explains everything.


--
Peter Geoghegan