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Bug 1972204 - got undefined symbol: EVP_md2, version OPENSSL_1_1_0 after upgrading from openldap-2.4.46-11 to openldap-2.4.46-15
Summary: got undefined symbol: EVP_md2, version OPENSSL_1_1_0 after upgrading from ope...
Keywords:
Status: CLOSED DUPLICATE of bug 1909037
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: openldap
Version: 8.5
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: 8.0
Assignee: LDAP Maintainers
QA Contact: RHDS QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-06-15 12:14 UTC by Simon Pichugin
Modified: 2021-06-16 12:31 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2021-06-16 12:31:18 UTC
Type: Bug
Target Upstream Version:
Embargoed:

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Description Simon Pichugin 2021-06-15 12:14:22 UTC 
This bug was initially created as a copy of Bug #1909037

I am copying this bug because: 
We need to get the fix into RHEL8.5.
The fix is simple - we add -DOPENSSL_NO_MD2 to CFLAGS.


Description of problem:
We are running an installation of apache httpd (2.4.46) where we compile it and bundle compiled versions of openssl (1.1.1i) and modsecurity (2.9.3). 
It has been running fine in several different environments on both RHEL 7 and 8 as well as CentOS 7 and 8.

The other day, it suddenly started failing with the following error message when loading modsecurity:

    httpd: Syntax error on line 251 of httpd.conf: Cannot load modules/mod_security2.so into server: /lib64/libldap-2.4.so.2: undefined symbol: EVP_md2, version OPENSSL_1_1_0

Our investigations shows that this started happening when openldap was bumped from openldap-2.4.46-11 to openldap-2.4.46-15 during a regular system update.

I'm not competent enough in these matters to say if this is a bug with the release of the package or not, just hoping that you might be able to shed some light on it.


Version-Release number of selected component (if applicable):
openldap-2.4.46-15.el8

How reproducible:
Always


Steps to Reproduce:
1. System running with our httpd package
2. Upgrade openldap-2.4.46 from release 11 to 15

Actual results:
httpd syntax error on startup

    httpd: Syntax error on line 251 of httpd.conf: Cannot load modules/mod_security2.so into server: /lib64/libldap-2.4.so.2: undefined symbol: EVP_md2, version OPENSSL_1_1_0

Expected results:
No syntax error on startup and a running system


Additional info:
Not sure if useful, but I've attached the output of pkgdiff between the mentioned releases.
Comment 1 Simon Pichugin 2021-06-16 12:31:18 UTC 

*** This bug has been marked as a duplicate of bug 1909037 ***
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