https://bugs.kde.org/show_bug.cgi?id=517707
Bug ID: 517707
Summary: Incorrect AES-GCM decryption in S/MIME
Classification: Applications
Product: kmail2
Version First 6.5.0
Reported In:
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: composer
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
S/MIME messages using AES-GCM (128/256-bit both) are incorrectly decrypted,
resulting in garbled text.
STEPS TO REPRODUCE
1. Open an S/MIME message that was encrypted using AES-GCM
OBSERVED RESULT
Garbled text output
EXPECTED RESULT
Proper text display (like the output from "openssl cms" decryption).
SOFTWARE/OS VERSIONS
Operating System: Ubuntu 25.10
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 6.17.0-14-generic (64-bit)
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