Michael Paquier 0caf1fc6e8 Fix corner case with 16kB-long decompression in pgcrypto, take 2 ...

A compressed stream may end with an empty packet.  In this case
decompression finishes before reading the empty packet and the
remaining stream packet causes a failure in reading the following
data.  This commit makes sure to consume such extra data, avoiding a
failure when decompression the data.  This corner case was reproducible
easily with a data length of 16kB, and existed since e94dd6a.  A cheap
regression test is added to cover this case based on a random,
incompressible string.

The first attempt of this patch has allowed to find an older failure
within the compression logic of pgcrypto, fixed by b9b6105.  This
involved SLES 15 with z390 where a custom flavor of libz gets used.
Bonus thanks to Mark Wong for providing access to the specific
environment.

Reported-by: Frank Gagnepain
Author: Kyotaro Horiguchi, Michael Paquier
Reviewed-by: Tom Lane
Discussion: https://postgr.es/m/16476-692ef7b84e5fb893@postgresql.org
Backpatch-through: 9.5

2020-07-27 15:58:54 +09:00

..

3des.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

blowfish.sql

Remove useless whitespace at end of lines

2010-11-23 22:34:55 +02:00

cast5.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

crypt-blowfish.sql

pgcrypto: Detect and report too-short crypt() salts.

2015-10-05 10:06:29 -04:00

crypt-des.sql

pgcrypto: Detect and report too-short crypt() salts.

2015-10-05 10:06:29 -04:00

crypt-md5.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

crypt-xdes.sql

pgcrypto: Detect and report too-short crypt() salts.

2015-10-05 10:06:29 -04:00

des.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

hmac-md5.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

hmac-sha1.sql

Fix typos in SQL scripts of pgcrypto

2019-05-28 06:33:30 -04:00

init.sql

Convert contrib modules to use the extension facility.

2011-02-13 22:54:49 -05:00

md5.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

pgp-armor.sql

Add functions for dealing with PGP armor header lines to pgcrypto.

2014-10-01 16:03:39 +03:00

pgp-compression.sql

Fix corner case with 16kB-long decompression in pgcrypto, take 2

2020-07-27 15:58:54 +09:00

pgp-decrypt.sql

Fix typos in SQL scripts of pgcrypto

2019-05-28 06:33:30 -04:00

pgp-encrypt.sql

pgcrypto: support changing S2K iteration count

2016-03-09 14:31:07 -03:00

pgp-info.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

pgp-pubkey-decrypt.sql

Fix buffer overrun after incomplete read in pullf_read_max().

2015-02-02 10:00:45 -05:00

pgp-pubkey-encrypt.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

pgp-zlib-DISABLED.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

rijndael.sql

pgcrypto's encrypt() supports AES-128, AES-192, and AES-256

2018-01-31 16:33:11 -05:00

sha1.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00

sha2.sql

Remove extra newlines at end and beginning of files, add missing newlines

2010-08-19 05:57:36 +00:00