[gnutls-devel] GnuTLS | X509:Fix incorrect handling in name constraints merging (!1997)

[Read-only notification of GnuTLS library development activities]

chenjianhu created a merge request: https://gitlab.com/gnutls/gnutls/-/merge_requests/1997

Project:Branches: cjhxmx/gnutls:gnutls-pr to gnutls/gnutls:master
Author:   chenjianhu




* X509:Fix incorrect handling in name constraints merging

As mentioned in commit ca573d65 ("x509: Fix asymmetry in name
constraints intersection", 2016-07-29), the
_gnutls_name_constraints_intersect function exhibited an
asymmetry in name constraints intersection behavior, specifically
manifested as:
1. Nodes of unique types in PERMITTED (absent in PERMITTED2) were
   preserved
2. Nodes of unique types in PERMITTED2 (absent in PERMITTED) were
   discarded

A 'used' flag was introduced, where if a node from PERMITTED2 was
   not used for the intersection, it would be copied to PERMITTED.

However,an unresolved edge case persisted:
- When 'removed.size > 0', the 'used' flag was unconditionally set
to 1
- This prevented copying of PERMITTED2 nodes with unique types

Signed-off-by: chenjianhu <chenjianhu at kylinos.cn>

-- 
Reply to this email directly or view it on GitLab: https://gitlab.com/gnutls/gnutls/-/merge_requests/1997
You're receiving this email because of your account on gitlab.com.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.gnupg.org/pipermail/gnutls-devel/attachments/20250801/6feef43e/attachment-0001.html>