Michael Paquier b83dcf7928 Add result size as argument of pg_cryptohash_final() for overflow checks ... With its current design, a careless use of pg_cryptohash_final() could would result in an out-of-bound write in memory as the size of the destination buffer to store the result digest is not known to the cryptohash internals, without the caller knowing about that. This commit adds a new argument to pg_cryptohash_final() to allow such sanity checks, and implements such defenses. The internals of SCRAM for HMAC could be tightened a bit more, but as everything is based on SCRAM_KEY_LEN with uses particular to this code there is no need to complicate its interface more than necessary, and this comes back to the refactoring of HMAC in core. Except that, this minimizes the uses of the existing DIGEST_LENGTH variables, relying instead on sizeof() for the result sizes. In ossp-uuid, this also makes the code more defensive, as it already relied on dce_uuid_t being at least the size of a MD5 digest. This is in philosophy similar to cfc40d3 for base64.c and aef8948 for hex.c. Reported-by: Ranier Vilela Author: Michael Paquier, Ranier Vilela Reviewed-by: Kyotaro Horiguchi Discussion: https://postgr.es/m/CAEudQAoqEGmcff3J4sTSV-R_16Monuz-UpJFbf_dnVH=APr02Q@mail.gmail.com		2021-02-15 10:18:34 +09:00
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expected	Fix corner case with 16kB-long decompression in pgcrypto, take 2	2020-07-27 15:58:32 +09:00
sql	Fix corner case with 16kB-long decompression in pgcrypto, take 2	2020-07-27 15:58:32 +09:00
.gitignore
blf.c
blf.h
crypt-blowfish.c	Get rid of trailing semicolons in C macro definitions.	2020-05-01 17:28:00 -04:00
crypt-des.c	Replace remaining StrNCpy() by strlcpy()	2020-08-10 23:20:37 +02:00
crypt-gensalt.c
crypt-md5.c	Add missing error check in pgcrypto/crypt-md5.c.	2020-10-16 11:59:13 -04:00
imath.c	Update copyright for 2021	2021-01-02 13:06:25 -05:00
imath.h
internal-sha2.c	Add result size as argument of pg_cryptohash_final() for overflow checks	2021-02-15 10:18:34 +09:00
internal.c	Add result size as argument of pg_cryptohash_final() for overflow checks	2021-02-15 10:18:34 +09:00
Makefile	Introduce --with-ssl={openssl} as a configure option	2021-02-01 19:19:44 +09:00
mbuf.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
mbuf.h
openssl.c	pgcrypto: Detect errors with EVP calls from OpenSSL	2020-12-08 15:22:12 +09:00
pgcrypto--1.0--1.1.sql
pgcrypto--1.1--1.2.sql
pgcrypto--1.2--1.3.sql
pgcrypto--1.3.sql
pgcrypto.c
pgcrypto.control	Mark some contrib modules as "trusted".	2020-02-13 15:02:35 -05:00
pgcrypto.h
pgp-armor.c
pgp-cfb.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-compress.c	Fix some grammar and typos in comments and docs	2020-11-02 15:14:41 +09:00
pgp-decrypt.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-encrypt.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-info.c	Dial back -Wimplicit-fallthrough to level 3	2020-05-13 15:31:14 -04:00
pgp-mpi-internal.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-mpi-openssl.c
pgp-mpi.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-pgsql.c	Refactor logic to check for ASCII-only characters in string	2020-12-21 09:37:11 +09:00
pgp-pubdec.c
pgp-pubenc.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-pubkey.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp-s2k.c
pgp.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
pgp.h
px-crypt.c
px-crypt.h
px-hmac.c	Remove custom memory allocation layer in pgcrypto	2020-09-25 10:25:55 +09:00
px.c	Add error code for encryption failure in pgcrypto	2020-11-01 19:22:59 +09:00
px.h	Add error code for encryption failure in pgcrypto	2020-11-01 19:22:59 +09:00
rijndael.c
rijndael.h
rijndael.tbl