Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2022-42335

x86 shadow paging arbitrary pointer dereference 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. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 20.0%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2022-42335
  • Fedoraproject » Fedora » Version: 38
    cpe:2.3:o:fedoraproject:fedora:38
  • Xen » Xen » Version: 4.17.0
    cpe:2.3:o:xen:xen:4.17.0


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