CVE-2022-42327

CVSS 7.1 HIGHEPSS 0.2%CWE-284

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

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

Ciclo de vida

01 nov 2022Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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

Produtos afetados

Xen · xen

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Referências

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