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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2014-11-11 17:22:15 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2014-11-11 17:22:38 -0500 |
| commit | 419de696a76f5884e26ecd0905a084b0f57afc93 (patch) | |
| tree | 9888eda2de6b71ab459bc732ca22bba181e97e43 | |
| parent | 2a83e0349c222047af87cf54d4ca87764806c291 (diff) | |
| download | postgresql-419de696a76f5884e26ecd0905a084b0f57afc93.tar.gz postgresql-419de696a76f5884e26ecd0905a084b0f57afc93.zip | |
Loop when necessary in contrib/pgcrypto's pktreader_pull().
This fixes a scenario in which pgp_sym_decrypt() failed with "Wrong key
or corrupt data" on messages whose length is 6 less than a power of 2.
Per bug #11905 from Connor Penhale. Fix by Marko Tiikkaja, regression
test case from Jeff Janes.
| -rw-r--r-- | contrib/pgcrypto/expected/pgp-decrypt.out | 8 | ||||
| -rw-r--r-- | contrib/pgcrypto/pgp-decrypt.c | 2 | ||||
| -rw-r--r-- | contrib/pgcrypto/sql/pgp-decrypt.sql | 4 |
3 files changed, 13 insertions, 1 deletions
diff --git a/contrib/pgcrypto/expected/pgp-decrypt.out b/contrib/pgcrypto/expected/pgp-decrypt.out index 859f4d681b4..7193dca0262 100644 --- a/contrib/pgcrypto/expected/pgp-decrypt.out +++ b/contrib/pgcrypto/expected/pgp-decrypt.out @@ -364,3 +364,11 @@ a3nsOzKTXUfS9VyaXo8IrncM6n7fdaXpwba/3tNsAhJG4lDv1k4g9v8Ix2dfv6Rs (1 row) -- expected: 7efefcab38467f7484d6fa43dc86cf5281bd78e2 +-- check BUG #11905, problem with messages 6 less than a power of 2. +select pgp_sym_decrypt(pgp_sym_encrypt(repeat('x',65530),'1'),'1') = repeat('x',65530); + ?column? +---------- + t +(1 row) + +-- expected: true diff --git a/contrib/pgcrypto/pgp-decrypt.c b/contrib/pgcrypto/pgp-decrypt.c index e03ee7f5f02..1fd7cf39767 100644 --- a/contrib/pgcrypto/pgp-decrypt.c +++ b/contrib/pgcrypto/pgp-decrypt.c @@ -182,7 +182,7 @@ pktreader_pull(void *priv, PullFilter *src, int len, if (pkt->type == PKT_CONTEXT) return pullf_read(src, len, data_p); - if (pkt->len == 0) + while (pkt->len == 0) { /* this was last chunk in stream */ if (pkt->type == PKT_NORMAL) diff --git a/contrib/pgcrypto/sql/pgp-decrypt.sql b/contrib/pgcrypto/sql/pgp-decrypt.sql index 93535ab016a..5457152ccf6 100644 --- a/contrib/pgcrypto/sql/pgp-decrypt.sql +++ b/contrib/pgcrypto/sql/pgp-decrypt.sql @@ -264,3 +264,7 @@ a3nsOzKTXUfS9VyaXo8IrncM6n7fdaXpwba/3tNsAhJG4lDv1k4g9v8Ix2dfv6Rs -----END PGP MESSAGE----- '), 'key', 'convert-crlf=1'), 'sha1'), 'hex'); -- expected: 7efefcab38467f7484d6fa43dc86cf5281bd78e2 + +-- check BUG #11905, problem with messages 6 less than a power of 2. +select pgp_sym_decrypt(pgp_sym_encrypt(repeat('x',65530),'1'),'1') = repeat('x',65530); +-- expected: true |