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Reply to topic   Topic: Errors with md_crypt compiling latest 2.4.60/61 on RHEL7
Author
chrisl



Joined: 04 Jul 2024
Posts: 1

PostPosted: Fri 05 Jul '24 16:51    Post subject: Errors with md_crypt compiling latest 2.4.60/61 on RHEL7 Reply with quote

I've been trying to compile the latest 2.4.60/61 release of Apache on RHEL7. This results in the md_crypt.c errors below.. I tested compiling on both RHEL8/9, which works fine.. I also testing compiling on RHEL7 with the previous 2.4.59 release, which worked fine as well..

Has anyone run into this issue or heard of any changes in the new releases that are incompatible with RHEL7? The change notes for the releases just list bug fixes and CVE remediation..

I'm at a loss as to what could be the issue here so any pointers would be appreciated!


Code:
md_crypt.c: In function 'md_cert_get_ct_scts':
md_crypt.c:2071:5: error: unknown type name 'SCT'
     SCT *sct_handle;
     ^
In file included from /usr/include/openssl/crypto.h:129:0,
                 from /usr/include/openssl/bio.h:69,
                 from /usr/include/openssl/err.h:124,
                 from md_crypt.c:28:
md_crypt.c:2084:29: error: 'SCT' undeclared (first use in this function)
                sct_handle = sk_SCT_value(sct_list, i);
                             ^
md_crypt.c:2084:29: note: each undeclared identifier is reported only once for each function it appears in
md_crypt.c:2084:29: error: expected expression before ')' token
                sct_handle = sk_SCT_value(sct_list, i);
                             ^
md_crypt.c:2087:21: warning: implicit declaration of function 'SCT_get_version' [-Wimplicit-function-declaration]
                     sct->version = SCT_get_version(sct_handle);
                     ^
md_crypt.c:2088:21: warning: implicit declaration of function 'SCT_get_timestamp' [-Wimplicit-function-declaration]
                     sct->timestamp = apr_time_from_msec(SCT_get_timestamp(sct_handle));
                     ^
md_crypt.c:2089:21: warning: implicit declaration of function 'SCT_get0_log_id' [-Wimplicit-function-declaration]
                     len = SCT_get0_log_id(sct_handle, (unsigned char**)&data);
                     ^
md_crypt.c:2091:21: warning: implicit declaration of function 'SCT_get_signature_nid' [-Wimplicit-function-declaration]
                     sct->signature_type_nid = SCT_get_signature_nid(sct_handle);
                     ^
md_crypt.c:2092:21: warning: implicit declaration of function 'SCT_get0_signature' [-Wimplicit-function-declaration]
                     len = SCT_get0_signature(sct_handle,  (unsigned char**)&data);
                     ^
make[4]: *** [md_crypt.slo] Error 1
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tangent
Moderator


Joined: 16 Aug 2020
Posts: 333
Location: UK

PostPosted: Sun 07 Jul '24 20:24    Post subject: Reply with quote

I don't have access to an RHEL 7 environment, but I'd speculate you have an old version of OpenSSL (probably 1.x series), e.g.
Code:
$ openssl version
OpenSSL 1.0.2k-fips  26 Jan 2017

If that's the case it may well be the cause of your Signed Certificate Timestamp (SCT) problems when building the latest Apache.

Since RHEL 7 is now End of Life, you'll need to install an updated OpenSSL if you want to keep Apache builds up to date. A quick search on the net reveals the following link on how to install OpenSSL 3.x on RHEL 7 (if that is indeed your problem) - https://computingforgeeks.com/how-to-install-openssl-3-x-on-centos-rhel-7

Let us know how you get on.
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