Fix buffer overflow when processing SCRAM final message in libpq
When a client connects to a rogue server sending specifically-crafted
messages, this can suffice to execute arbitrary code as the operating
system account used by the client.
While on it, fix one error handling when decoding an incorrect salt
included in the first message received from server.
Author: Michael Paquier
Reviewed-by: Jonathan Katz, Heikki Linnakangas
Security: CVE-2019-10164
Backpatch-through: 10
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/b67421178880f9df337dc19b8601b54b99efbc78
Modified Files
--------------
src/interfaces/libpq/fe-auth-scram.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)