CVE-2022-42331 vulnerabilities and exploits

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x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be att...

Xen Xen Fedoraproject Fedora 37 Fedoraproject Fedora 38

x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly...

Xen Xen Debian Debian Linux 11.0 Fedoraproject Fedora 37 Fedoraproject Fedora 38

x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly...

Xen Xen Debian Debian Linux 11.0 Fedoraproject Fedora 37 Fedoraproject Fedora 38

x86 shadow plus log-dirty mode use-after-free In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Shadow mode maintains a pool of memory used for both shadow page tab...

Xen Xen Debian Debian Linux 11.0 Fedoraproject Fedora 37 Fedoraproject Fedora 38

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