CVE-2020-15852

HIGH

7.8

Descricao

An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.

Detalhes CVE

Pontuacao CVSS v3.17.8

SeveridadeHIGH

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado7/20/2020

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

linux:linux_kernelnetapp:cloud_backupnetapp:solidfire_baseboard_management_controllernetapp:steelstore_cloud_integrated_storagexen:xen

Fraquezas (CWE)

CWE-276

Referencias

http://www.openwall.com/lists/oss-security/2020/07/21/2(cve@mitre.org)

http://xenbits.xen.org/xsa/advisory-329.html(cve@mitre.org)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2(cve@mitre.org)

https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20200810-0001/(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2020/07/21/2(af854a3a-2127-422b-91ae-364da2661108)

http://xenbits.xen.org/xsa/advisory-329.html(af854a3a-2127-422b-91ae-364da2661108)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20200810-0001/(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

Sem correlacoes registradas

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