[M] Change in openvpn[release/2.7]: Check for null-bytes in certificate subjects

Attention is currently required from: plaisthos, syzzer.

MaxF has posted comments on this change by MaxF. ( http://gerrit.openvpn.net/c/openvpn/+/1902?usp=email )

Change subject: Check for null-bytes in certificate subjects
......................................................................


Patch Set 1:

(1 comment)

File src/openvpn/ssl_verify_openssl.c:

http://gerrit.openvpn.net/c/openvpn/+/1902/comment/ff834928_84e03501?usp=email :
PS1, Line 389:                            | ASN1_STRFLGS_ESC_CTRL);
> Why remove the ESC_CTRL?
I did the same thing in the master branch. This flag was escaping null bytes to '\\0', so the check after it wouldn't work.



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Gerrit-MessageType: comment
Gerrit-Project: openvpn
Gerrit-Branch: release/2.7
Gerrit-Change-Id: Iea1481e94ba1abe18c39d81cd797187c88427571
Gerrit-Change-Number: 1902
Gerrit-PatchSet: 1
Gerrit-Owner: MaxF <[email protected]>
Gerrit-Reviewer: plaisthos <[email protected]>
Gerrit-Reviewer: syzzer <[email protected]>
Gerrit-CC: openvpn-devel <[email protected]>
Gerrit-Attention: syzzer <[email protected]>
Gerrit-Attention: plaisthos <[email protected]>
Gerrit-Comment-Date: Mon, 07 Sep 2026 12:54:20 +0000
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Comment-In-Reply-To: syzzer <[email protected]>

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