On 08/18/2015 03:47 AM, Tony Mountifield wrote:
In article 55D2174F.70509@centos.org, Johnny Hughes johnny@centos.org wrote:
On 08/17/2015 11:19 AM, Johnny Hughes wrote:
On 08/17/2015 10:57 AM, Tony Mountifield wrote:
I recently applied updates to a CentOS 5 box running MySQL. I've discovered that the new version of openssl, 0.9.8e-36.0.1.el5_11, breaks MySQL SSL connections.
If I rename /lib/libssl.so.0.9.8e and replace it with the old version of that file from openssl-0.9.8e-27.el5_10.1 (not sure if that is the next oldest, but it was handy), then SSL connection to MySQL works again.
I then performed cross-checks using the server with new libssl and the client with old, and then vice versa. What I found was that it didn't matter whether the server was started with the old libssl or the new libssl. In both cases, the mysql client would only connect using the old libssl, and not when using the new libssl.
When it works with the old libssl, I can confirm that SSL is in use:
mysql> \s
mysql Ver 14.12 Distrib 5.0.95, for redhat-linux-gnu (i386) using readline 5.1
Connection id: 2 Current database: Current user: root@localhost SSL: Cipher in use is DHE-RSA-AES256-SHA
The error with the new libssl looks like this:
[root@hostname ~]# mysql ERROR 2026 (HY000): SSL connection error
Has anyone else come across this? Is it a bug in SSL? Or a new restriction? Do I need to regenerate my certificates using the new openssl?
Cheers Tony
You should now be using mysql55 on CentOS-5, not mysql-5.0
In case you did not understand my post, here is how one is supposed to move from mysql-5.0 to mysql55 and why:
Thanks. I eventually found the more specific link at https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/htm...
However, the only "why" I could find was "Red Hat will not issue any more security advisories for the MySQL 5.0 packages (mysql-5.0.* and related packages). Security advisories will be provided only for MySQL 5.5." Nothing to indicate that anything in 5.0 is inherently broken. Are there any more specific reasons? It appears to be working fine.
Working fine is NOT secure. The fact that they have not issued any security update for MySQL 5.0 since mid 2013 .. and since then there have been 4 security issues fixed in EL5 (1 Important, 3 Moderate) in the mysql55 updates.
And is the same true for C6, which comes with mysql 5.1, that one should use mysql55 from SCL instead? Why, or why not?
No, I would use the version of mysql that is supported in the distro. For EL5, the supported version is the mysql55. For EL6 it is the mysql-5.1 version.