Re: [oss-security] Xen Security Advisory 439 v1 (CVE-2023-20588) - x86/AMD: Divide speculative information leak

2023-09-26 Thread Demi Marie Obenour
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Mon, Sep 25, 2023 at 04:05:37PM +, Xen Security wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Xen Security Advisory CVE-2023-20588 / XSA-439 > > x86/AMD: Divide speculative information leak > >

Xen Security Advisory 439 v1 (CVE-2023-20588) - x86/AMD: Divide speculative information leak

2023-09-25 Thread Xen . org security team
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Xen Security Advisory CVE-2023-20588 / XSA-439 x86/AMD: Divide speculative information leak ISSUE DESCRIPTION = In the Zen1 microarchitecure, there is one divider in the pipeline which services uops from