Package: thunderbird Version: 1:68.5.0-1+b1 Severity: normal Tags: security
A pkcs7 s/mime signature is not recognized by the client. I compared what is the difference between a recognized and an unrecognized signature. correctly recognized: Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=SHA1; boundary="----=_NextPart_000_0000_01D6040E.23370570" MIME-Version: 1.0 ... ------=_NextPart_000_0000_01D6040E.23370570 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" ---------------------------------------------------------------------------------------------------------- not recognized: Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; boundary="--=_V1R2=_=q1202.27865.7237_1" MIME-Version: 1.0 ... ----=_V1R2=_=q1202.27865.7237_1 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" ---------------------------------------------------------------------------------------------------------- The source code of the email does not differ anywhere else. In the past, he still displayed the smime.p7s attachment for such undetected signatures, which he no longer does. By the way, the manufacturer of the outlook plugin "cv act s / mail" for signing writes that he did everything correctly and the email client (thunderbird) has to be checked. the error occurs with a Thunderbird 68.5.0 under debian Linux (Bullseye). -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.5.0-1-amd64 (SMP w/4 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) Versions of packages thunderbird depends on: ii debianutils 4.9.1 ii fontconfig 2.13.1-2+b1 ii libatk1.0-0 2.36.0-2 ii libc6 2.30-4 ii libcairo-gobject2 1.16.0-4 ii libcairo2 1.16.0-4 ii libdbus-1-3 1.12.16-2 ii libdbus-glib-1-2 0.110-5 ii libevent-2.1-7 2.1.11-stable-1 ii libffi7 3.3-4 ii libfontconfig1 2.13.1-2+b1 ii libfreetype6 2.10.1-2 ii libgcc-s1 10-20200411-1 ii libgdk-pixbuf2.0-0 2.40.0+dfsg-4 ii libglib2.0-0 2.64.1-1 ii libgtk-3-0 3.24.18-1 ii libgtk2.0-0 2.24.32-4 ii libicu63 63.2-3 ii libjsoncpp1 1.7.4-3.1 ii libnspr4 2:4.25-1 ii libnss3 2:3.49.1-1 ii libpango-1.0-0 1.42.4-8 ii libsqlite3-0 3.31.1-4 ii libstartup-notification0 0.12-6 ii libstdc++6 10-20200411-1 ii libvpx6 1.8.2-dmo1 ii libx11-6 2:1.6.9-2 ii libx11-xcb1 2:1.6.9-2 ii libxcb-shm0 1.14-2 ii libxcb1 1.14-2 ii libxext6 2:1.3.3-1+b2 ii libxrender1 1:0.9.10-1 ii libxt6 1:1.1.5-1+b3 ii psmisc 23.3-1 ii x11-utils 7.7+5 ii zlib1g 1:1.2.11.dfsg-2 Versions of packages thunderbird recommends: ii hunspell-de-at [hunspell-dictionary] 20161207-7 ii hunspell-de-ch [hunspell-dictionary] 20161207-7 ii hunspell-de-de [hunspell-dictionary] 20161207-7 ii lightning 1:68.5.0-1 Versions of packages thunderbird suggests: pn apparmor <none> ii fonts-lyx 2.3.4.2-2 ii libgssapi-krb5-2 1.17-7 -- no debconf information