CVE-2022-42335

EPSS 0.3%

Vexday Risk Score

3Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS —EPSS 0.3%KEV nãoPoC —Patch referenciado

Ciclo de vida

25 abr 2023Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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.

Productos afectados

Xen · xen

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Referencias

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PSPFWSY6UOPGMADQGOGN2PAAS5LJRPTG/https://security.gentoo.org/glsa/202402-07 https://xenbits.xenproject.org/xsa/advisory-430.txt http://www.openwall.com/lists/oss-security/2023/04/25/1 http://xenbits.xen.org/xsa/advisory-430.html