[qubes-users] Update for QSB-090: Zenbleed (CVE-2023-20593, XSA-433)

Dear Qubes Community,

We have updated [Qubes Security Bulletin 090: Zenbleed (CVE-2023-20593, XSA-433)](https://github.com/QubesOS/qubes-secpack/blob/main/QSBs/qsb-090-2023.txt). The text of this updated QSB (including a changelog) and its accompanying cryptographic signatures are reproduced below. For an explanation of this announcement and instructions for authenticating this QSB, please see the end of this announcement.

## Qubes Security Bulletin 090


             ---===[ Qubes Security Bulletin 090 ]===---


                 Zenbleed (CVE-2023-20593, XSA-433)


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