CVE-2021-28039

MEDIUM

6.5

Descricao

An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has CONFIG_XEN_UNPOPULATED_ALLOC but not CONFIG_XEN_BALLOON_MEMORY_HOTPLUG.

Detalhes CVE

Pontuacao CVSS v3.16.5

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado3/5/2021

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

linux:linux_kernelnetapp:cloud_backupnetapp:solidfire_baseboard_management_controller_firmwarexen:xen

Fraquezas (CWE)

CWE-131

Referencias

http://www.openwall.com/lists/oss-security/2021/03/05/2(cve@mitre.org)

http://xenbits.xen.org/xsa/advisory-369.html(cve@mitre.org)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=882213990d32fd224340a4533f6318dd152be4b2(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20210409-0001/(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/03/05/2(af854a3a-2127-422b-91ae-364da2661108)

http://xenbits.xen.org/xsa/advisory-369.html(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=882213990d32fd224340a4533f6318dd152be4b2(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20210409-0001/(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

Sem correlacoes registradas

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