Hi,
After upgrading to PostgreSQL 9.4.6, our test system gave error messages
like:
ERROR: invalid salt
The cause of these errors is statements like:
WHERE password = crypt('secret', 'secret')
After reverting to Postgres 9.4.4 the test system worked properly again.
This might be related to a security fix in 9.4.5:
---
Fix contrib/pgcrypto to detect and report too-short crypt() salts (Josh
Kupershmidt)
Certain invalid salt arguments crashed the server or disclosed a few bytes
of server memory. We have not ruled out the viability of attacks that
arrange for presence of confidential information in the disclosed bytes, but
they seem unlikely. (CVE-2015-5288)
---
The "crypt" call is hardcoded in legacy code that hasn't been recompiled in
years. Are there ways to keep the old code running against a newer Postgres
version?
Kind regards,
Andomar
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