CVE-2022-42327

CVSS 7.1 HIGHEPSS 0.2%CWE-284

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

01 nov 2022Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Productos afectados

Xen · xen

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Referencias

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/https://security.gentoo.org/glsa/202402-07 https://xenbits.xenproject.org/xsa/advisory-412.txt http://www.openwall.com/lists/oss-security/2022/11/01/3 http://xenbits.xen.org/xsa/advisory-412.html