Mageia 7 MGASA-2021-0200 Critical: QSslSocket Denial of Service

QSslSocket incorrectly calls SSL_shutdown() in OpenSSL mid-handshake causing denial of service in TLS applications (CVE-2020-13962)
This update provides additionals fixes: - Check that the sizes are even representable when checking if clipping is necessary (P300)
- Multiply instead of shifting, The shift operator is undefined for negative values. (P301)
- Check returns of hex2int in get_hex_rgb, Avoids undefined behavior when trying to shift negative values. (P302)
- Sanitize lengthValue in CSS parser, Limit the LengthData to the integer range before rounding it, taking into account that qRound() substracts 1 from negative values. (P303)
- QBezier: Don't try calculating a unit vector when length is null. It's undefined and causes a division by zero. (P304)
- Avoid potential ub in corrupt bmp file. biHeight may be int_min, in which case qAbs() will not work. (P305)
- wasm: disable XDG_RUNTIME_DIR warning XDG is not very relevant on the Web platform. (P306)
- Use SOUR...